Fixed socket category unit test.

They report the budget the socket manager enforces, so a client can show the limit.

.github/workflows/commit-lint.yml

@@ -0,0 +1,65 @@
+name: "Lint Commit Message Size"
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+jobs:
+  check-commit-bounds:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Validate Line Count, Width, and Spacing
+        run: |
+          # Fetch commit hashes unique to this PR branch
+          COMMITS=$(git log --no-merges --pretty=format:"%H" origin/${{ github.base_ref }}..HEAD)
+
+          MAX_LINES=3
+          MAX_CHARS=90
+          FAILED=0
+
+          for commit in $COMMITS; do
+            SUBJECT=$(git log --format="%s" -n 1 $commit)
+
+            # Extract clean commit message, trimming trailing blank lines
+            RAW_MSG=$(git log --format="%B" -n 1 $commit)
+            CLEAN_MSG=$(echo "$RAW_MSG" | awk '{msg[NR]=$0} END {while(NR>0 && msg[NR]=="") NR--; for(i=1;i<=NR;i++) print msg[i]}')
+
+            # 1. Check total line count
+            LINE_COUNT=$(echo "$CLEAN_MSG" | wc -l)
+            if [ "$LINE_COUNT" -gt "$MAX_LINES" ]; then
+              echo "❌ Error: Commit message has too many lines ($LINE_COUNT/$MAX_LINES)."
+              echo "   Commit: '$SUBJECT'"
+              FAILED=1
+            fi
+
+            # 2. Check for multiple consecutive blank lines
+            # This regex looks for 2 or more empty lines anywhere in the message
+            if echo "$CLEAN_MSG" | grep -pz '(\r?\n){3,}'; then
+              echo "❌ Error: Commit message contains multiple consecutive line breaks."
+              echo "   Commit: '$SUBJECT'"
+              FAILED=1
+            fi
+
+            # 3. Check maximum width of any individual line
+            while IFS= read -r line; do
+              LINE_LENGTH=${#line}
+              if [ "$LINE_LENGTH" -gt "$MAX_CHARS" ]; then
+                echo "❌ Error: Line length exceeds limit ($LINE_LENGTH / $MAX_CHARS chars)."
+                echo "   Offending line: '$line'"
+                FAILED=1
+              fi
+            done <<< "$CLEAN_MSG"
+
+          done
+
+          # Fail the job if any check failed
+          if [ "$FAILED" -ne 0 ]; then
+            exit 1
+          fi
+
+          echo "✅ All commit messages passed style rules!"

.github/workflows/post-static-analysis.yml

@@ -14,7 +14,7 @@ jobs:
     permissions:
       pull-requests: write
       # OPTIONAL: auto-closing conversations requires the `contents` permission
-      contents: write
+      contents: read
     steps:
     - name: Sleep for 30 seconds
       run: sleep 30s

.github/workflows/unit-tests.yml

@@ -4,9 +4,8 @@ on: pull_request
 
 jobs:
 
-  unit-tests:
+  ubuntu-base:
     runs-on: ubuntu-22.04
-
     steps:
     - name: Update Packages
       run: |
@@ -23,43 +22,86 @@ jobs:
     - name: Build libtorrent
       run: |
         cd libtorrent
-        libtoolize
-        aclocal -I scripts
-        autoconf -i
-        autoheader
-        automake --add-missing
+        autoreconf -fiv
         ./configure
         make
-        sudo make install
-        cd ..
-        rm -rf libtorrent
-    - uses: actions/checkout@v4
+        sudo make install DESTDIR=$GITHUB_WORKSPACE/libtorrent-dist
+    - name: Upload Build Artifacts
+      uses: actions/upload-artifact@v4
       with:
-        ref: ${{ github.event.pull_request.head.sha }}
-        fetch-depth: 0
-    - name: Fetch base branch
+        name: installed-libtorrent
+        path: libtorrent-dist/
+
+
+  unit-tests-default:
+    runs-on: ubuntu-22.04
+    needs: ubuntu-base
+    steps:
+    - name: Update Packages
       run: |
-        git remote add upstream "https://github.com/${{ github.event.pull_request.base.repo.full_name }}"
-        git fetch --no-tags --no-recurse-submodules upstream "${{ github.event.pull_request.base.ref }}"
+        sudo apt-get update
+    - name: Install Dependencies
+      run: |
+        sudo apt-get install -y \
+          libcppunit-dev \
+          zlib1g-dev \
+          libcurl4-openssl-dev
+    - name: Download Libtorrent Artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: installed-libtorrent
+        path: ./libtorrent-dist
+    - name: Move Artifacts to System Path
+      run: |
+        # Elevate permissions with sudo to safely place the files
+        sudo cp -r ./libtorrent-dist/usr/local/* /usr/local/
+        rm -rf ./libtorrent-dist
+    - uses: actions/checkout@v4
     - name: Configure Project
       run: |
-        libtoolize
-        aclocal -I scripts
-        autoconf -i
-        autoheader
-        automake --add-missing
+        autoreconf -fiv
         ./configure
-    - name: Build Project
-      run: |
         make
-    - name: Run Unit Tests
-      run: |
         ls /usr/local/lib/
-        export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/lib"
-        make check
+        LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/lib" make check
     - name: Archive test/test-suite.log
       if: success() || failure()
       uses: actions/upload-artifact@v4
       with:
         name: test-suite.log
         path: test/test-suite.log
+
+  unit-tests-variants:
+    runs-on: ubuntu-22.04
+    needs: unit-tests-default
+    strategy:
+      matrix:
+        config_flag: ["--with-xmlrpc-c", "--with-xmlrpc-tinyxml2"]
+    steps:
+    - name: Update Packages
+      run: |
+        sudo apt-get update
+    - name: Install Dependencies
+      run: |
+        sudo apt-get install -y \
+          libcppunit-dev \
+          zlib1g-dev \
+          libcurl4-openssl-dev \
+          libxmlrpc-c++8-dev
+    - name: Download Libtorrent Artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: installed-libtorrent
+        path: ./libtorrent-dist
+    - name: Move Artifacts to System Path
+      run: |
+        sudo cp -r ./libtorrent-dist/usr/local/* /usr/local/
+        rm -rf ./libtorrent-dist
+    - uses: actions/checkout@v4
+    - name: Configure Project
+      run: |
+        autoreconf -fiv
+        ./configure ${{ matrix.config_flag }}
+        make
+        ls /usr/local/lib/
+        LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/lib" make check

.gitignore

@@ -18,6 +18,7 @@
 .libs
 Makefile
 aclocal.m4
+‎actmp.*
 ar-lib
 autom4te.cache
 compile
@@ -69,4 +70,5 @@ TAGS
 ###########################
 src/rtorrent
 test/rtorrent_Test*
+test/test-suite.log.tmp
 test-driver

Makefile.am

@@ -7,7 +7,6 @@ nobase_dist_pkgdata_DATA = \
 	lua/rtorrent.lua
 
 EXTRA_DIST= \
-	rak/regex.h \
 	scripts/checks.m4 \
 	scripts/common.m4 \
 	scripts/attributes.m4

configure.ac

@@ -1,6 +1,6 @@
 m4_pattern_allow([PKG_CHECK_EXISTS])
 
-AC_INIT([rtorrent],[0.16.12],[sundell.software@gmail.com])
+AC_INIT([rtorrent],[0.16.19],[sundell.software@gmail.com])
 
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_MACRO_DIRS([scripts])
@@ -10,15 +10,11 @@ AM_PROG_AR
 LT_INIT
 
 AC_PROG_CXX
+AX_CXX_COMPILE_STDCXX(20, noext, mandatory)
 
-AC_DEFINE([API_VERSION], [20], [api version])
+PKG_PROG_PKG_CONFIG
 
-# Filter out unwanted flags added by autoconf on some systems, e.g. MacOS.
-TORRENT_REMOVE_UNWANTED(CXX, $CXX, -std=c++11 -std=gnu++11)
-
-AX_CXX_COMPILE_STDCXX([17], [noext], [mandatory])
-
-AC_SYS_LARGEFILE
+AC_DEFINE([API_VERSION], [24], [api version])
 
 RAK_CHECK_CFLAGS
 RAK_CHECK_CXXFLAGS
@@ -26,9 +22,6 @@ RAK_ENABLE_DEBUG
 RAK_ENABLE_EXTRA_DEBUG
 RAK_ENABLE_WERROR
 
-TORRENT_ENABLE_ARCH
-TORRENT_WITH_SYSROOT
-
 AC_ARG_ENABLE(execinfo,
   AS_HELP_STRING([--disable-execinfo],
     [disable libexecinfo [[default=enable]]]),
@@ -41,20 +34,28 @@ AC_ARG_ENABLE(execinfo,
   ])
 
 AX_PTHREAD([], AC_MSG_ERROR([requires pthread]))
-AX_WITH_CURSES
 
-if test "x$ax_cv_ncursesw" != xyes && test "x$ax_cv_ncurses" != xyes; then
-  AC_MSG_ERROR([requires either NcursesW or Ncurses library])
+TORRENT_WITHOUT_NCURSES
+
+if test "x$with_ncurses" != xno; then
+  AX_WITH_CURSES
+
+  if test "x$ax_cv_ncursesw" != xyes && test "x$ax_cv_ncurses" != xyes; then
+    AC_MSG_ERROR([requires either NcursesW or Ncurses library])
+  fi
 fi
 
 PKG_CHECK_MODULES([CPPUNIT], [cppunit],, [no_cppunit="yes"])
 PKG_CHECK_MODULES([ZLIB], [zlib])
-PKG_CHECK_MODULES([DEPENDENCIES], [libtorrent >= 0.16.12])
+PKG_CHECK_MODULES([DEPENDENCIES], [libtorrent >= 0.16.19])
 
 AC_LANG_PUSH(C++)
 TORRENT_WITH_XMLRPC_C
 AC_LANG_POP(C++)
 
+dnl We don't have LuaJIT support, and the script breaks if not disabled.
+AM_CONDITIONAL([LUAJIT], [false])
+
 TORRENT_WITH_LUA
 TORRENT_WITH_TINYXML2
 TORRENT_WITH_SYSTEMD
@@ -71,7 +72,8 @@ LIBS="$PTHREAD_LIBS $CURSES_LIB $CURSES_LIBS $ZLIB_LIBS $DEPENDENCIES_LIBS $LIBS
 CFLAGS="$CFLAGS $PTHREAD_CFLAGS $CURSES_CFLAGS $ZLIB_CFLAGS $DEPENDENCIES_CFLAGS"
 CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS $CURSES_CFLAGS $ZLIB_CFLAGS $DEPENDENCIES_CFLAGS"
 
-TORRENT_CHECK_POPCOUNT()
+TORRENT_CHECK_CACHELINE
+TORRENT_CHECK_POSIX_SPAWN_ADDCLOSEFROM_NP
 
 AC_CONFIG_FILES([
   Makefile

doc/rtorrent.rc

@@ -46,8 +46,12 @@
 #session.path.set = ./session
 
 # Watch a directory for new torrents, and stop those that have been
-# deleted.
+# deleted. Use directory.watch.ready for network shares or other watch
+# directories where files may be copied or written directly into place.
+# Do not mix directory.watch.ready and directory.watch.added on the same
+# watch directory.
 #
+#directory.watch.ready = ./watch, load.start
 #schedule2 = watch_directory,5,5,load.start=./watch/*.torrent
 
 # Close torrents when disk-space is low.

rak/regex.h

@@ -1,109 +0,0 @@
-// rak - Rakshasa's toolbox
-// Copyright (C) 2005-2007, Jari Sundell
-//
-// This program is free software; you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation; either version 2 of the License, or
-// (at your option) any later version.
-// 
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-// 
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-//
-// In addition, as a special exception, the copyright holders give
-// permission to link the code of portions of this program with the
-// OpenSSL library under certain conditions as described in each
-// individual source file, and distribute linked combinations
-// including the two.
-//
-// You must obey the GNU General Public License in all respects for
-// all of the code used other than OpenSSL.  If you modify file(s)
-// with this exception, you may extend this exception to your version
-// of the file(s), but you are not obligated to do so.  If you do not
-// wish to do so, delete this exception statement from your version.
-// If you delete this exception statement from all source files in the
-// program, then also delete it here.
-//
-// Contact:  Jari Sundell <sundell.software@gmail.com>
-
-
-// This is a hacked up whole string pattern matching. Replace with
-// TR1's regex when that becomes widely available. It is intended for
-// small strings.
-
-#ifndef RAK_REGEX_H
-#define RAK_REGEX_H
-
-#include <sys/types.h>
-
-#include <algorithm>
-#include <functional>
-#include <string>
-#include <list>
-
-namespace rak {
-
-class regex {
-public:
-  regex() {}
-  regex(const std::string& p) : m_pattern(p) {}
-
-  const std::string& pattern() const { return m_pattern; }
-
-  bool operator () (const std::string& p) const;
-
-private:
-  std::string m_pattern;
-};
-
-// This isn't optimized, or very clean. A simple hack that should work.
-inline bool
-regex::operator () (const std::string& text) const {
-  if (m_pattern.empty() ||
-      text.empty() ||
-      (m_pattern[0] != '*' && m_pattern[0] != text[0]))
-    return false;
-
-  // Replace with unordered_vector?
-  std::list<unsigned int> paths;
-  paths.push_front(0);
-
-  for (std::string::const_iterator itrText = ++text.begin(), lastText = text.end(); itrText != lastText; ++itrText) {
-    
-    for (std::list<unsigned int>::iterator itrPaths = paths.begin(), lastPaths = paths.end(); itrPaths != lastPaths; ) {
-
-      unsigned int next = *itrPaths + 1;
-
-      if (m_pattern[*itrPaths] != '*')
-	itrPaths = paths.erase(itrPaths);
-      else
-	itrPaths++;
-
-      // When we reach the end of 'm_pattern', we don't have a whole
-      // match of 'text'.
-      if (next == m_pattern.size())
-	continue;
-
-      // Push to the back so that '*' will match zero length strings.
-      if (m_pattern[next] == '*')
-	paths.push_back(next);
-
-      if (m_pattern[next] == *itrText)
-	paths.push_front(next);
-    }
-
-    if (paths.empty())
-      return false;
-  }
-
-  return std::find(paths.begin(), paths.end(), m_pattern.size() - 1) != paths.end();
-}
-
-}
-
-#endif

scripts/ax_cxx_compile_stdcxx.m4

@@ -10,8 +10,8 @@
 #
 #   Check for baseline language coverage in the compiler for the specified
 #   version of the C++ standard.  If necessary, add switches to CXX and
-#   CXXCPP to enable support.  VERSION may be '11' (for the C++11 standard)
-#   or '14' (for the C++14 standard).
+#   CXXCPP to enable support.  VERSION may be '11', '14', '17', '20', or
+#   '23' for the respective C++ standard version.
 #
 #   The second argument, if specified, indicates whether you insist on an
 #   extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g.
@@ -36,13 +36,15 @@
 #   Copyright (c) 2016, 2018 Krzesimir Nowak <qdlacz@gmail.com>
 #   Copyright (c) 2019 Enji Cooper <yaneurabeya@gmail.com>
 #   Copyright (c) 2020 Jason Merrill <jason@redhat.com>
+#   Copyright (c) 2021, 2024 Jörn Heusipp <osmanx@problemloesungsmaschine.de>
+#   Copyright (c) 2015, 2022, 2023, 2024 Olly Betts
 #
 #   Copying and distribution of this file, with or without modification, are
 #   permitted in any medium without royalty provided the copyright notice
 #   and this notice are preserved.  This file is offered as-is, without any
 #   warranty.
 
-#serial 12
+#serial 25
 
 dnl  This macro is based on the code from the AX_CXX_COMPILE_STDCXX_11 macro
 dnl  (serial version number 13).
@@ -51,6 +53,8 @@ AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
   m4_if([$1], [11], [ax_cxx_compile_alternatives="11 0x"],
         [$1], [14], [ax_cxx_compile_alternatives="14 1y"],
         [$1], [17], [ax_cxx_compile_alternatives="17 1z"],
+        [$1], [20], [ax_cxx_compile_alternatives="20"],
+        [$1], [23], [ax_cxx_compile_alternatives="23"],
         [m4_fatal([invalid first argument `$1' to AX_CXX_COMPILE_STDCXX])])dnl
   m4_if([$2], [], [],
         [$2], [ext], [],
@@ -102,9 +106,18 @@ AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
     dnl HP's aCC needs +std=c++11 according to:
     dnl http://h21007.www2.hp.com/portal/download/files/unprot/aCxx/PDF_Release_Notes/769149-001.pdf
     dnl Cray's crayCC needs "-h std=c++11"
+    dnl MSVC needs -std:c++NN for C++17 and later (default is C++14)
     for alternative in ${ax_cxx_compile_alternatives}; do
-      for switch in -std=c++${alternative} +std=c++${alternative} "-h std=c++${alternative}"; do
-        cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
+      for switch in -std=c++${alternative} +std=c++${alternative} "-h std=c++${alternative}" MSVC; do
+        if test x"$switch" = xMSVC; then
+          dnl AS_TR_SH maps both `:` and `=` to `_` so -std:c++17 would collide
+          dnl with -std=c++17.  We suffix the cache variable name with _MSVC to
+          dnl avoid this.
+          switch=-std:c++${alternative}
+          cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_${switch}_MSVC])
+        else
+          cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
+        fi
         AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
                        $cachevar,
           [ac_save_CXX="$CXX"
@@ -148,23 +161,44 @@ AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
 dnl  Test body for checking C++11 support
 
 m4_define([_AX_CXX_COMPILE_STDCXX_testbody_11],
-  _AX_CXX_COMPILE_STDCXX_testbody_new_in_11
+  [_AX_CXX_COMPILE_STDCXX_testbody_new_in_11]
 )
 
-
 dnl  Test body for checking C++14 support
 
 m4_define([_AX_CXX_COMPILE_STDCXX_testbody_14],
-  _AX_CXX_COMPILE_STDCXX_testbody_new_in_11
-  _AX_CXX_COMPILE_STDCXX_testbody_new_in_14
+  [_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
+   _AX_CXX_COMPILE_STDCXX_testbody_new_in_14]
 )
 
+dnl  Test body for checking C++17 support
+
 m4_define([_AX_CXX_COMPILE_STDCXX_testbody_17],
-  _AX_CXX_COMPILE_STDCXX_testbody_new_in_11
-  _AX_CXX_COMPILE_STDCXX_testbody_new_in_14
-  _AX_CXX_COMPILE_STDCXX_testbody_new_in_17
+  [_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
+   _AX_CXX_COMPILE_STDCXX_testbody_new_in_14
+   _AX_CXX_COMPILE_STDCXX_testbody_new_in_17]
 )
 
+dnl  Test body for checking C++20 support
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_20],
+  [_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
+   _AX_CXX_COMPILE_STDCXX_testbody_new_in_14
+   _AX_CXX_COMPILE_STDCXX_testbody_new_in_17
+   _AX_CXX_COMPILE_STDCXX_testbody_new_in_20]
+)
+
+dnl  Test body for checking C++23 support
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_23],
+  [_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
+   _AX_CXX_COMPILE_STDCXX_testbody_new_in_14
+   _AX_CXX_COMPILE_STDCXX_testbody_new_in_17
+   _AX_CXX_COMPILE_STDCXX_testbody_new_in_20
+   _AX_CXX_COMPILE_STDCXX_testbody_new_in_23]
+)
+
+
 dnl  Tests for new features in C++11
 
 m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_11], [[
@@ -176,7 +210,21 @@ m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_11], [[
 
 #error "This is not a C++ compiler"
 
-#elif __cplusplus < 201103L
+// MSVC always sets __cplusplus to 199711L in older versions; newer versions
+// only set it correctly if /Zc:__cplusplus is specified as well as a
+// /std:c++NN switch:
+//
+// https://devblogs.microsoft.com/cppblog/msvc-now-correctly-reports-__cplusplus/
+//
+// The value __cplusplus ought to have is available in _MSVC_LANG since
+// Visual Studio 2015 Update 3:
+//
+// https://learn.microsoft.com/en-us/cpp/preprocessor/predefined-macros
+//
+// This was also the first MSVC version to support C++14 so we can't use the
+// value of either __cplusplus or _MSVC_LANG to quickly rule out MSVC having
+// C++11 or C++14 support, but we can check _MSVC_LANG for C++17 and later.
+#elif __cplusplus < 201103L && !defined _MSC_VER
 
 #error "This is not a C++11 compiler"
 
@@ -467,7 +515,7 @@ m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_14], [[
 
 #error "This is not a C++ compiler"
 
-#elif __cplusplus < 201402L
+#elif __cplusplus < 201402L && !defined _MSC_VER
 
 #error "This is not a C++14 compiler"
 
@@ -591,7 +639,7 @@ m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_17], [[
 
 #error "This is not a C++ compiler"
 
-#elif __cplusplus < 201703L
+#elif (defined _MSVC_LANG ? _MSVC_LANG : __cplusplus) < 201703L
 
 #error "This is not a C++17 compiler"
 
@@ -957,6 +1005,66 @@ namespace cxx17
 
 }  // namespace cxx17
 
-#endif  // __cplusplus < 201703L
+#endif  // (defined _MSVC_LANG ? _MSVC_LANG : __cplusplus) < 201703L
+
+]])
+
+
+dnl  Tests for new features in C++20
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_20], [[
+
+#ifndef __cplusplus
+
+#error "This is not a C++ compiler"
+
+#elif (defined _MSVC_LANG ? _MSVC_LANG : __cplusplus) < 202002L
+
+#error "This is not a C++20 compiler"
+
+#else
+
+#include <version>
+
+namespace cxx20
+{
+
+// As C++20 supports feature test macros in the standard, there is no
+// immediate need to actually test for feature availability on the
+// Autoconf side.
+
+}  // namespace cxx20
+
+#endif  // (defined _MSVC_LANG ? _MSVC_LANG : __cplusplus) < 202002L
+
+]])
+
+
+dnl  Tests for new features in C++23
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_23], [[
+
+#ifndef __cplusplus
+
+#error "This is not a C++ compiler"
+
+#elif (defined _MSVC_LANG ? _MSVC_LANG : __cplusplus) < 202302L
+
+#error "This is not a C++23 compiler"
+
+#else
+
+#include <version>
+
+namespace cxx23
+{
+
+// As C++23 supports feature test macros in the standard, there is no
+// immediate need to actually test for feature availability on the
+// Autoconf side.
+
+}  // namespace cxx23
+
+#endif  // (defined _MSVC_LANG ? _MSVC_LANG : __cplusplus) < 202302L
 
 ]])

scripts/ax_lua.m4

@@ -19,7 +19,7 @@
 #   header is checked to match the Lua interpreter version exactly. When
 #   searching for Lua libraries, the version number is used as a suffix.
 #   This is done with the goal of supporting multiple Lua installs (5.1,
-#   5.2, and 5.3 side-by-side).
+#   5.2, 5.3, and 5.4 side-by-side).
 #
 #   A note on compatibility with previous versions: This file has been
 #   mostly rewritten for serial 18. Most developers should be able to use
@@ -49,6 +49,14 @@
 #   interpreter. If LUA is blank, the user's path is searched for an
 #   suitable interpreter.
 #
+#   Optionally a LUAJIT option may be set ahead of time to look for and
+#   validate a LuaJIT install instead of PUC Lua. Usage might look like:
+#
+#     AC_ARG_WITH(luajit, [AS_HELP_STRING([--with-luajit],
+#         [Prefer LuaJIT over PUC Lua, even if the latter is newer. Default: no])
+#     ])
+#     AM_CONDITIONAL([LUAJIT], [test "x$with_luajit" != 'xno'])
+#
 #   If MINIMUM-VERSION is supplied, then only Lua interpreters with a
 #   version number greater or equal to MINIMUM-VERSION will be accepted. If
 #   TOO-BIG-VERSION is also supplied, then only Lua interpreters with a
@@ -82,7 +90,7 @@
 #   appropriate Automake primary, e.g. lua_SCRIPS or luaexec_LIBRARIES.
 #
 #   If an acceptable Lua interpreter is found, then ACTION-IF-FOUND is
-#   performed, otherwise ACTION-IF-NOT-FOUND is preformed. If ACTION-IF-NOT-
+#   performed, otherwise ACTION-IF-NOT-FOUND is performed. If ACTION-IF-NOT-
 #   FOUND is blank, then it will default to printing an error. To prevent
 #   the default behavior, give ':' as an action.
 #
@@ -152,6 +160,7 @@
 #
 # LICENSE
 #
+#   Copyright (c) 2023 Caleb Maclennan <caleb@alerque.com>
 #   Copyright (c) 2015 Reuben Thomas <rrt@sc3d.org>
 #   Copyright (c) 2014 Tim Perkins <tprk77@gmail.com>
 #
@@ -181,7 +190,7 @@
 #   modified version of the Autoconf Macro, you may extend this special
 #   exception to the GPL to apply to your modified version as well.
 
-#serial 42
+#serial 47
 
 dnl =========================================================================
 dnl AX_PROG_LUA([MINIMUM-VERSION], [TOO-BIG-VERSION],
@@ -197,13 +206,14 @@ AC_DEFUN([AX_PROG_LUA],
   AC_ARG_VAR([LUA], [The Lua interpreter, e.g. /usr/bin/lua5.1])
 
   dnl Find a Lua interpreter.
-  m4_define_default([_AX_LUA_INTERPRETER_LIST],
-    [lua lua5.3 lua53 lua5.2 lua52 lua5.1 lua51 lua50])
+  AM_COND_IF([LUAJIT],
+        [_ax_lua_interpreter_list='luajit luajit-2.1.0-beta3 luajit-2.0.5 luajit-2.0.4 luajit-2.0.3'],
+        [_ax_lua_interpreter_list='lua lua5.4 lua54 lua5.3 lua53 lua5.2 lua52 lua5.1 lua51 lua5.0 lua50'])
 
   m4_if([$1], [],
   [ dnl No version check is needed. Find any Lua interpreter.
     AS_IF([test "x$LUA" = 'x'],
-      [AC_PATH_PROGS([LUA], [_AX_LUA_INTERPRETER_LIST], [:])])
+      [AC_PATH_PROGS([LUA], [$_ax_lua_interpreter_list], [:])])
     ax_display_LUA='lua'
 
     AS_IF([test "x$LUA" != 'x:'],
@@ -242,7 +252,7 @@ AC_DEFUN([AX_PROG_LUA],
         [_ax_check_text="for a Lua interpreter with version >= $1, < $2"])
       AC_CACHE_CHECK([$_ax_check_text],
         [ax_cv_pathless_LUA],
-        [ for ax_cv_pathless_LUA in _AX_LUA_INTERPRETER_LIST none; do
+        [ for ax_cv_pathless_LUA in $_ax_lua_interpreter_list none; do
             test "x$ax_cv_pathless_LUA" = 'xnone' && break
             _AX_LUA_CHK_IS_INTRP([$ax_cv_pathless_LUA], [], [continue])
             _AX_LUA_CHK_VER([$ax_cv_pathless_LUA], [$1], [$2], [break])
@@ -268,13 +278,25 @@ AC_DEFUN([AX_PROG_LUA],
         ax_cv_lua_version=[`$LUA -e '
           -- return a version number in X.Y format
           local _, _, ver = string.find(_VERSION, "^Lua (%d+%.%d+)")
-          print(ver)'`]
+          print(ver or "")'`]
       ])
     AS_IF([test "x$ax_cv_lua_version" = 'x'],
       [AC_MSG_ERROR([invalid Lua version number])])
     AC_SUBST([LUA_VERSION], [$ax_cv_lua_version])
     AC_SUBST([LUA_SHORT_VERSION], [`echo "$LUA_VERSION" | $SED 's|\.||'`])
 
+    AM_COND_IF([LUAJIT], [
+      AC_CACHE_CHECK([for $ax_display_LUA jit version], [ax_cv_luajit_version],
+        [ ax_cv_luajit_version=[`$LUA -e '
+          local _, _, ver = string.find(jit and jit.version, "(%d+%..+)")
+          print(ver or "")'`]
+        ])
+      AS_IF([test "x$ax_cv_luajit_version" = 'x'],
+        [AC_MSG_ERROR([invalid Lua jit version number])])
+      AC_SUBST([LUAJIT_VERSION], [$ax_cv_luajit_version])
+      AC_SUBST([LUAJIT_SHORT_VERSION], [$(echo "$LUAJIT_VERSION" | $SED 's|\.|§|;s|\..*||;s|§|.|')])
+    ])
+
     dnl The following check is not supported:
     dnl At times (like when building shared libraries) you may want to know
     dnl which OS platform Lua thinks this is.
@@ -464,33 +486,50 @@ AC_DEFUN([AX_LUA_HEADERS],
       AC_MSG_ERROR([cannot check Lua headers without knowing LUA_VERSION])
     ])
 
+  AM_COND_IF([LUAJIT],[
+    dnl Check for LUAJIT_VERSION.
+    AC_MSG_CHECKING([if LUAJIT_VERSION is defined])
+    AS_IF([test "x$LUAJIT_VERSION" != 'x'],
+      [AC_MSG_RESULT([yes])],
+      [ AC_MSG_RESULT([no])
+        AC_MSG_ERROR([cannot check Lua jit headers without knowing LUAJIT_VERSION])
+      ])
+  ])
+
   dnl Make LUA_INCLUDE a precious variable.
   AC_ARG_VAR([LUA_INCLUDE], [The Lua includes, e.g. -I/usr/include/lua5.1])
 
-  dnl Some default directories to search.
-  LUA_SHORT_VERSION=`echo "$LUA_VERSION" | $SED 's|\.||'`
-  m4_define_default([_AX_LUA_INCLUDE_LIST],
-    [ /usr/include/lua$LUA_VERSION \
-      /usr/include/lua-$LUA_VERSION \
-      /usr/include/lua/$LUA_VERSION \
-      /usr/include/lua$LUA_SHORT_VERSION \
-      /usr/local/include/lua$LUA_VERSION \
-      /usr/local/include/lua-$LUA_VERSION \
-      /usr/local/include/lua/$LUA_VERSION \
-      /usr/local/include/lua$LUA_SHORT_VERSION \
-    ])
+  dnl  Some default directories to search.
+  AM_COND_IF([LUAJIT],
+    [_ax_lua_include_list="
+      /usr/include/luajit-$LUAJIT_VERSION
+      /usr/include/luajit-$LUAJIT_SHORT_VERSION
+      /usr/local/include/luajit-$LUAJIT_VERSION
+      /usr/local/include/luajit-$LUAJIT_SHORT_VERSION"],
+    [_ax_lua_include_list="
+      /usr/include/lua$LUA_VERSION
+      /usr/include/lua-$LUA_VERSION
+      /usr/include/lua/$LUA_VERSION
+      /usr/include/lua$LUA_SHORT_VERSION
+      /usr/local/include/lua$LUA_VERSION
+      /usr/local/include/lua-$LUA_VERSION
+      /usr/local/include/lua/$LUA_VERSION
+      /usr/local/include/lua$LUA_SHORT_VERSION"])
 
   dnl Try to find the headers.
   _ax_lua_saved_cppflags=$CPPFLAGS
   CPPFLAGS="$CPPFLAGS $LUA_INCLUDE"
   AC_CHECK_HEADERS([lua.h lualib.h lauxlib.h luaconf.h])
+  AM_COND_IF([LUAJIT], [AC_CHECK_HEADERS([luajit.h])])
   CPPFLAGS=$_ax_lua_saved_cppflags
 
   dnl Try some other directories if LUA_INCLUDE was not set.
   AS_IF([test "x$LUA_INCLUDE" = 'x' &&
-         test "x$ac_cv_header_lua_h" != 'xyes'],
+         test "x$ac_cv_header_lua_h" != 'xyes' ||
+         test "x$with_luajit" != 'xno' &&
+         test "x$ac_cv_header_luajit_h" != 'xyes'],
     [ dnl Try some common include paths.
-      for _ax_include_path in _AX_LUA_INCLUDE_LIST; do
+      for _ax_include_path in $_ax_lua_include_list; do
         test ! -d "$_ax_include_path" && continue
 
         AC_MSG_CHECKING([for Lua headers in])
@@ -500,10 +539,12 @@ AC_DEFUN([AX_LUA_HEADERS],
         AS_UNSET([ac_cv_header_lualib_h])
         AS_UNSET([ac_cv_header_lauxlib_h])
         AS_UNSET([ac_cv_header_luaconf_h])
+        AS_UNSET([ac_cv_header_luajit_h])
 
         _ax_lua_saved_cppflags=$CPPFLAGS
         CPPFLAGS="$CPPFLAGS -I$_ax_include_path"
         AC_CHECK_HEADERS([lua.h lualib.h lauxlib.h luaconf.h])
+        AM_COND_IF([LUAJIT], [AC_CHECK_HEADERS([luajit.h])])
         CPPFLAGS=$_ax_lua_saved_cppflags
 
         AS_IF([test "x$ac_cv_header_lua_h" = 'xyes'],
@@ -621,18 +662,26 @@ AC_DEFUN([AX_LUA_LIBS],
     dnl Try to find the Lua libs.
     _ax_lua_saved_libs=$LIBS
     LIBS="$LIBS $LUA_LIB"
-    AC_SEARCH_LIBS([lua_load],
-      [ lua$LUA_VERSION \
-        lua$LUA_SHORT_VERSION \
-        lua-$LUA_VERSION \
-        lua-$LUA_SHORT_VERSION \
-        :liblua-$LUA_VERSION.so.0 \
-        :liblua-$LUA_SHORT_VERSION.so.0 \
-        lua \
-      ],
-      [_ax_found_lua_libs='yes'],
-      [_ax_found_lua_libs='no'],
-      [$_ax_lua_extra_libs])
+    AM_COND_IF([LUAJIT],
+      [AC_SEARCH_LIBS([lua_load],
+        [ luajit$LUA_VERSION \
+          luajit$LUA_SHORT_VERSION \
+          luajit-$LUA_VERSION \
+          luajit-$LUA_SHORT_VERSION \
+          luajit],
+        [_ax_found_lua_libs='yes'],
+        [_ax_found_lua_libs='no'],
+        [$_ax_lua_extra_libs])],
+      [AC_SEARCH_LIBS([lua_load],
+        [ lua$LUA_VERSION \
+          lua$LUA_SHORT_VERSION \
+          lua-$LUA_VERSION \
+          lua-$LUA_SHORT_VERSION \
+          lua \
+        ],
+        [_ax_found_lua_libs='yes'],
+        [_ax_found_lua_libs='no'],
+        [$_ax_lua_extra_libs])])
     LIBS=$_ax_lua_saved_libs
 
     AS_IF([test "x$ac_cv_search_lua_load" != 'xno' &&

scripts/checks.m4

@@ -1,48 +1,3 @@
-AC_DEFUN([TORRENT_CHECK_XFS], [
-  AC_MSG_CHECKING(for XFS support)
-
-  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
-      #include <xfs/libxfs.h>
-      #include <sys/ioctl.h>
-      int main() {
-        struct xfs_flock64 l;
-        ioctl(0, XFS_IOC_RESVSP64, &l);
-        return 0;
-      }
-      ])],
-    [
-      AC_DEFINE(USE_XFS, 1, Use XFS filesystem stuff.)
-      AC_MSG_RESULT(yes)
-    ], [
-      AC_MSG_RESULT(no)
-    ])
-])
-
-
-AC_DEFUN([TORRENT_WITHOUT_XFS], [
-  AC_ARG_WITH(xfs,
-    AS_HELP_STRING([--without-xfs],[do not check for XFS filesystem support]),
-    [
-       if test "$withval" = "yes"; then
-        TORRENT_CHECK_XFS
-      fi
-    ], [
-        TORRENT_CHECK_XFS
-    ])
-])
-
-
-AC_DEFUN([TORRENT_WITH_XFS], [
-  AC_ARG_WITH(xfs,
-    AS_HELP_STRING([--with-xfs],[check for XFS filesystem support]),
-    [
-      if test "$withval" = "yes"; then
-        TORRENT_CHECK_XFS
-      fi
-    ])
-])
-
-
 AC_DEFUN([TORRENT_CHECK_EPOLL], [
   AC_MSG_CHECKING(for epoll support)
 
@@ -54,6 +9,8 @@ AC_DEFUN([TORRENT_CHECK_EPOLL], [
       }
       ])],
     [
+      use_epoll=yes
+
       AC_DEFINE(USE_EPOLL, 1, Use epoll.)
       AC_MSG_RESULT(yes)
     ], [
@@ -86,6 +43,8 @@ AC_DEFUN([TORRENT_CHECK_KQUEUE], [
       }
       ])],
     [
+      use_kqueue=yes
+
       AC_DEFINE(USE_KQUEUE, 1, Use kqueue.)
       AC_MSG_RESULT(yes)
     ], [
@@ -118,48 +77,9 @@ AC_DEFUN([TORRENT_WITHOUT_KQUEUE], [
 ])
 
 
-AC_DEFUN([TORRENT_CHECK_FALLOCATE], [
-  AC_MSG_CHECKING(for fallocate)
-
-  AC_LINK_IFELSE([AC_LANG_PROGRAM([[#define _GNU_SOURCE
-               #include <fcntl.h>
-              ]], [[ fallocate(0, FALLOC_FL_KEEP_SIZE, 0, 0); return 0;
-              ]])],[
-      AC_DEFINE(HAVE_FALLOCATE, 1, Linux's fallocate supported.)
-      AC_MSG_RESULT(yes)
-    ],[
-      AC_MSG_RESULT(no)
-    ])
-])
-
-
-AC_DEFUN([TORRENT_CHECK_POSIX_FALLOCATE], [
-  AC_MSG_CHECKING(for posix_fallocate)
-
-  AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <fcntl.h>
-              ]], [[ posix_fallocate(0, 0, 0);
-              ]])],[
-      AC_DEFINE(USE_POSIX_FALLOCATE, 1, posix_fallocate supported.)
-      AC_MSG_RESULT(yes)
-    ],[
-      AC_MSG_RESULT(no)
-    ])
-])
-
-
-AC_DEFUN([TORRENT_WITH_POSIX_FALLOCATE], [
-  AC_ARG_WITH(posix-fallocate,
-    AS_HELP_STRING([--with-posix-fallocate],[check for and use posix_fallocate to allocate files]),
-    [
-      if test "$withval" = "yes"; then
-        TORRENT_CHECK_POSIX_FALLOCATE
-      fi
-    ])
-])
-
 AC_DEFUN([TORRENT_WITH_ADDRESS_SPACE], [
   AC_ARG_WITH(address-space,
-    AS_HELP_STRING([--with-address-space=MB],[change the default address space size [[default=1024mb]]]),
+    AS_HELP_STRING([--with-address-space=MB],[change the default address space size [default=1024mb-or-32768mb]]),
     [
       if test ! -z $withval -a "$withval" != "yes" -a "$withval" != "no"; then
         AC_DEFINE_UNQUOTED(DEFAULT_ADDRESS_SPACE_SIZE, [$withval])
@@ -171,51 +91,48 @@ AC_DEFUN([TORRENT_WITH_ADDRESS_SPACE], [
       AC_CHECK_SIZEOF(long)
 
       if test $ac_cv_sizeof_long = 8; then
-        AC_DEFINE(DEFAULT_ADDRESS_SPACE_SIZE, 4096, Default address space size.)
+        AC_DEFINE(DEFAULT_ADDRESS_SPACE_SIZE, 32768, Default address space size.)
       else
         AC_DEFINE(DEFAULT_ADDRESS_SPACE_SIZE, 1024, Default address space size.)
       fi
     ])
 ])
 
-AC_DEFUN([TORRENT_WITH_FASTCGI], [
-  AC_ARG_WITH(fastcgi,
-    AS_HELP_STRING([--with-fastcgi=PATH],[enable FastCGI RPC support (DO NOT USE)]),
+
+AC_DEFUN([TORRENT_CHECK_ATOMIC], [
+  AC_MSG_CHECKING([whether 64-bit atomic operations require -latomic])
+  AC_LANG_PUSH(C++)
+
+  AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <cstdint>
+                                    #include <atomic>]],
+                                    [[std::atomic<uint64_t> x(0);
+                                    return x.load();]])],
     [
-      AC_MSG_CHECKING([for FastCGI (DO NOT USE)])
+      AC_MSG_RESULT([no])
+      ATOMIC_LIBS=""
+    ],
+    [
+      save_LIBS="$LIBS"
+      LIBS="$LIBS -latomic"
 
-      if test "$withval" = "no"; then
-        AC_MSG_RESULT(no)
-
-      elif test "$withval" = "yes"; then
-        CXXFLAGS="$CXXFLAGS"
-	LIBS="$LIBS -lfcgi"        
-
-        AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include <fcgiapp.h>
-        ]], [[ FCGX_Init(); ]])],[
-          AC_MSG_RESULT(ok)
-        ],[
-          AC_MSG_RESULT(not found)
-          AC_MSG_ERROR(Could not compile FastCGI test.)
+      AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <cstdint>
+                                        #include <atomic>]],
+                                        [[std::atomic<uint64_t> x(0);
+                                        return x.load();]])],
+        [
+          AC_MSG_RESULT([yes])
+          ATOMIC_LIBS="-latomic"
+        ],
+        [
+          AC_MSG_RESULT([unsupported])
+          AC_MSG_ERROR([Compiler target lacks proper 64-bit atomic support.])
         ])
 
-        AC_DEFINE(HAVE_FASTCGI, 1, Support for FastCGI.)
-
-      else
-        CXXFLAGS="$CXXFLAGS -I$withval/include"
-	LIBS="$LIBS -lfcgi -L$withval/lib"
-
-        AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include <fcgiapp.h>
-        ]], [[ FCGX_Init(); ]])],[
-          AC_MSG_RESULT(ok)
-        ],[
-          AC_MSG_RESULT(not found)
-          AC_MSG_ERROR(Could not compile FastCGI test.)
-        ])
-
-        AC_DEFINE(HAVE_FASTCGI, 1, Support for FastCGI.)
-      fi
+      LIBS="$save_LIBS"
     ])
+
+  AC_LANG_POP(C++)
+  AC_SUBST([ATOMIC_LIBS])
 ])
 
 
@@ -260,6 +177,7 @@ AC_DEFUN([TORRENT_WITH_XMLRPC_C], [
   ])
 ])
 
+
 AC_DEFUN([TORRENT_WITH_TINYXML2], [
   AC_MSG_CHECKING(for tinyxml2)
 
@@ -273,6 +191,7 @@ AC_DEFUN([TORRENT_WITH_TINYXML2], [
   ])
 ])
 
+
 AC_DEFUN([TORRENT_WITH_LUA], [
   AC_ARG_WITH(lua,
     AS_HELP_STRING([--with-lua],[enable LUA support]),
@@ -281,29 +200,45 @@ AC_DEFUN([TORRENT_WITH_LUA], [
       AC_MSG_RESULT(no)
     else
       AX_PROG_LUA
-      AX_LUA_LIBS
-      AX_LUA_HEADERS
-      AC_DEFINE(HAVE_LUA, 1, Use LUA.)
-      AC_DEFINE(LUA_DATADIR, [PACKAGE_DATADIR "/lua"], [LUA data directory])
-      LIBS="$LIBS $LUA_LIB"
-      CXXFLAGS="$CXXFLAGS $LUA_INCLUDE"
+
+      # 1. Override AX_LUA_LIBS default crash behavior 
+      AX_LUA_LIBS([have_lua_libs=yes], [have_lua_libs=no])
+
+      # 2. Override AX_LUA_HEADERS default crash behavior
+      AX_LUA_HEADERS([have_lua_headers=yes], [have_lua_headers=no])
+
+      # 3. Only inject if both checks completely pass
+      if test "x$have_lua_libs" = "xyes" && test "x$have_lua_headers" = "xyes"; then
+        AC_DEFINE(HAVE_LUA, 1, Use LUA.)
+        AC_DEFINE(LUA_DATADIR, [PACKAGE_DATADIR "/lua"], [LUA data directory])
+        LIBS="$LIBS $LUA_LIB"
+        CXXFLAGS="$CXXFLAGS $LUA_INCLUDE"
+      else
+        # Throw fatal error ONLY if user strictly ran --with-lua=yes
+        if test "$withval" = "yes"; then
+          AC_MSG_ERROR([Lua support explicitly requested, but compatible Lua 5.3 libs/headers were not found.])
+        else
+          AC_MSG_WARN([Lua 5.3 libs or headers missing. Proceeding without Lua support.])
+        fi
+      fi
     fi
   ],[
     AC_MSG_RESULT(ignored)
   ])
 ])
 
+
 AC_DEFUN([TORRENT_WITH_INOTIFY], [
   AC_LANG_PUSH(C++)
 
-  AC_CHECK_HEADERS([sys/inotify.h mcheck.h])
+  AC_CHECK_HEADERS([sys/inotify.h])
   AC_MSG_CHECKING([whether sys/inotify.h actually works])
 
   AC_COMPILE_IFELSE([AC_LANG_SOURCE([
       #include <sys/inotify.h>
       int main(int,const char**) { return (-1 == inotify_init()); }])
     ],[
-     AC_DEFINE(HAVE_INOTIFY, 1, [sys/inotify.h exists and works correctly])
+     AC_DEFINE(USE_INOTIFY, 1, [sys/inotify.h exists and works correctly])
      AC_MSG_RESULT(yes)],
     [AC_MSG_RESULT(failed)]
   )
@@ -311,12 +246,14 @@ AC_DEFUN([TORRENT_WITH_INOTIFY], [
   AC_LANG_POP(C++)
 ])
 
+
 AC_DEFUN([TORRENT_CHECK_PTHREAD_SETNAME_NP], [
   AC_CHECK_HEADERS(pthread.h)
 
   AC_MSG_CHECKING(for pthread_setname_np type)
 
   AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+    #define _GNU_SOURCE
     #include <pthread.h>
     #include <sys/types.h>
   ]], [[
@@ -341,6 +278,7 @@ AC_DEFUN([TORRENT_CHECK_PTHREAD_SETNAME_NP], [
   ])
 ])
 
+
 AC_DEFUN([TORRENT_DISABLE_PTHREAD_SETNAME_NP], [
   AC_MSG_CHECKING([for pthread_setname_no])
 
@@ -360,6 +298,24 @@ AC_DEFUN([TORRENT_DISABLE_PTHREAD_SETNAME_NP], [
 ])
 
 
+AC_DEFUN([TORRENT_CHECK_POSIX_SPAWN_ADDCLOSEFROM_NP], [
+  AC_MSG_CHECKING(for posix_spawn_file_actions_addclosefrom_np)
+
+  AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+    #define _GNU_SOURCE
+    #include <spawn.h>
+  ]], [[
+    posix_spawn_file_actions_t actions;
+    posix_spawn_file_actions_addclosefrom_np(&actions, 3);
+  ]])],[
+    AC_DEFINE(HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSEFROM_NP, 1, [Define if posix_spawn_file_actions_addclosefrom_np is available.])
+    AC_MSG_RESULT(yes)
+  ],[
+    AC_MSG_RESULT(no)
+  ])
+])
+
+
 AC_DEFUN([TORRENT_WITH_SYSTEMD], [
   AC_ARG_WITH(systemd,
     AS_HELP_STRING([--with-systemd],[enable systemd socket activation support [[default=no]]]),
@@ -375,3 +331,20 @@ AC_DEFUN([TORRENT_WITH_SYSTEMD], [
       fi
     ])
 ])
+
+
+AC_DEFUN([TORRENT_WITHOUT_NCURSES], [
+  AC_ARG_WITH([ncurses],
+    [AS_HELP_STRING([--without-ncurses], [build without ncurses (daemon-only mode)])],
+    [with_ncurses=$withval],
+    [with_ncurses=yes])
+
+  if test "x$with_ncurses" = xno; then
+    AC_DEFINE([HAVE_NO_NCURSES], [1], [Define to 1 if building without ncurses])
+    CURSES_LIBS=""
+    CURSES_CFLAGS=""
+    CURSES_LIB=""
+  fi
+
+  AM_CONDITIONAL([NO_NCURSES], [test "x$with_ncurses" = xno])
+])

scripts/common.m4

@@ -1,67 +1,3 @@
-AC_DEFUN([TORRENT_WITH_SYSROOT], [
-  AC_ARG_WITH(sysroot,
-    AS_HELP_STRING([--with-sysroot=PATH],
-      [compile and link with a specific sysroot]),
-    [
-      AC_MSG_CHECKING(for sysroot)
-
-      if test "$withval" = "no"; then
-        AC_MSG_RESULT(no)
-
-      elif test "$withval" = "yes"; then
-        AC_MSG_RESULT(not a path)
-        AC_MSG_ERROR(The sysroot option must point to a directory, like f.ex "/Developer/SDKs/MacOSX10.4u.sdk".)
-      else
-        AC_MSG_RESULT($withval)
-
-        CXXFLAGS="$CXXFLAGS -isysroot $withval"
-        LDFLAGS="$LDFLAGS -Wl,-syslibroot,$withval"
-      fi
-    ])
-])
-
-
-AC_DEFUN([TORRENT_REMOVE_UNWANTED],
-[
-  AC_REQUIRE([AC_PROG_GREP])
-  values_to_check=`for i in $2; do echo $i; done`
-  unwanted_values=`for i in $3; do echo $i; done`
-  if test -z "${unwanted_values}"; then
-    $1="$2"
-  else
-    result=`echo "${values_to_check}" | $GREP -Fvx -- "${unwanted_values}" | $GREP -v '^$'`
-    # join with spaces, squeeze repeats, and trim trailing space
-    $1=$(printf '%s\n' "$result" | tr '\n' ' ' | sed 's/  */ /g; s/ *$//')
-  fi
-])
-
-
-AC_DEFUN([TORRENT_ENABLE_ARCH], [
-  AC_ARG_ENABLE(arch,
-    AS_HELP_STRING([--enable-arch=ARCH],
-      [comma seprated list of architectures to compile for]),
-    [
-      AC_MSG_CHECKING(for target architectures)
-
-      if test "$enableval" = "yes"; then
-        AC_MSG_ERROR(no arch supplied)
-
-      elif test "$enableval" = "no"; then
-        AC_MSG_RESULT(using default)
-
-      else
-        AC_MSG_RESULT($enableval)
-
-        for i in `IFS=,; echo $enableval`; do
-          CFLAGS="$CFLAGS -march=$i"
-          CXXFLAGS="$CXXFLAGS -march=$i"
-          LDFLAGS="$LDFLAGS -march=$i"
-        done
-      fi
-    ])
-])
-
-
 AC_DEFUN([TORRENT_MINCORE_SIGNEDNESS], [
   AC_LANG_PUSH(C++)
   AC_MSG_CHECKING(signedness of mincore parameter)
@@ -90,7 +26,7 @@ AC_DEFUN([TORRENT_MINCORE_SIGNEDNESS], [
           AC_MSG_RESULT(signed)
         ],
         [
-          AC_MSG_ERROR([failed, do *not* attempt fix this with --disable-mincore unless you are running Win32.])
+          AC_MSG_ERROR([failed, do *not* attempt fix this with --disable-mincore unless you are running Win32 or OpenBSD.])
       ])
   ])
 
@@ -144,108 +80,196 @@ AC_DEFUN([TORRENT_CHECK_POSIX_FADVISE], [
   ])
 ])
 
-AC_DEFUN([TORRENT_CHECK_POPCOUNT], [
-  AC_MSG_CHECKING(for __builtin_popcount)
-
-  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
-      int f() { return __builtin_popcount(0); }
-    ])],
-    [
-      AC_MSG_RESULT(yes)
-      AC_DEFINE(USE_BUILTIN_POPCOUNT, 1, Use __builtin_popcount.)
-    ], [
-      AC_MSG_RESULT(no)
-  ])
-])
-
 AC_DEFUN([TORRENT_CHECK_CACHELINE], [
-  AC_MSG_CHECKING(for cacheline)
+  AC_REQUIRE([AC_CANONICAL_HOST])
+  AC_MSG_CHECKING([for target cacheline size])
 
-  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
-      #include <stdlib.h>
-          #include <linux/cache.h>
-          void* vptr __cacheline_aligned;
-          void f() { posix_memalign(&vptr, SMP_CACHE_BYTES, 42); }
-      ])],
-    [
-      AC_MSG_RESULT(found builtin)
-dnl   Need to fix this so that it uses the stuff defined by the system.
+  case "$host_os" in
+    linux*)
+      # REGION: Linux Kernel Extraction Loop
+      AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+        #include <stdlib.h>
+        #include <linux/cache.h>
+        void* vptr;
+        void f() {
+          int res = posix_memalign(&vptr, SMP_CACHE_BYTES, 42);
+          (void)res;
+        }
+      ]])],[
+        # We need an explicit variable fallback condition inside AC_COMPUTE_INT
+        AC_COMPUTE_INT([torrent_cv_cacheline_size], [SMP_CACHE_BYTES], [#include <linux/cache.h>], [torrent_cv_cacheline_size=0])
 
-      AC_DEFINE(LT_SMP_CACHE_BYTES, 128, Largest L1 cache size we know of should work on all archs.)
-    ], [
-      AC_MSG_RESULT(using default 128 bytes)
-      AC_DEFINE(LT_SMP_CACHE_BYTES, 128, Largest L1 cache size we know of should work on all archs.)
-  ])
-])
-
-AC_DEFUN([TORRENT_CHECK_ALIGNED], [
-  AC_MSG_CHECKING(the byte alignment)
-
-  AC_RUN_IFELSE([AC_LANG_SOURCE([
-      #include <inttypes.h>
-      int main() {
-        char buf@<:@8@:>@ = { 0, 0, 0, 0, 1, 0, 0, 0 };
-	int i;
-        for (i = 1; i < 4; ++i)
-	  if (*(uint32_t*)(buf + i) == 0) return -1;
-	return 0;
-	}
-      ])],
-    [
-      AC_MSG_RESULT(none needed)
-    ], [
-      AC_DEFINE(USE_ALIGNED, 1, Require byte alignment)
-      AC_MSG_RESULT(required)
-  ])
-])
-
-
-AC_DEFUN([TORRENT_ENABLE_ALIGNED], [
-  AC_ARG_ENABLE(aligned,
-    AS_HELP_STRING([--enable-aligned],
-      [enable alignment safe code [[default=check]]]),
-    [
-        if test "$enableval" = "yes"; then
-          AC_DEFINE(USE_ALIGNED, 1, Require byte alignment)
+        if test "$torrent_cv_cacheline_size" -gt 0; then
+          AC_MSG_RESULT([linux builtin ($torrent_cv_cacheline_size bytes)])
+          AC_DEFINE_UNQUOTED([LT_SMP_CACHE_BYTES], [$torrent_cv_cacheline_size], [System-defined Linux L1 SMP cacheline size.])
+        else
+          # Handle scenarios where macro maps to a complex runtime expression or fails
+          AC_MSG_RESULT([failed to parse SMP_CACHE_BYTES value])
+          AC_MSG_FAILURE([Linux kernel headers found, but cacheline constant could not be computed at compile-time.])
         fi
-    ],[
-        TORRENT_CHECK_ALIGNED
-  ])
+      ],[
+        # Explicitly validate the CPU type even on Linux if the header check fails
+        case "$host_cpu" in
+          x86_64*|amd64*|i386*|i486*|i586*|i686*)
+            AC_MSG_RESULT([linux fallback x86 64 bytes])
+            AC_DEFINE([LT_SMP_CACHE_BYTES], 64, [Fallback 64-byte alignment for Linux x86 hardware.])
+            ;;
+          arm*|aarch64*|powerpc*|ppc*|s390x*)
+            AC_MSG_RESULT([linux fallback enterprise 128 bytes])
+            AC_DEFINE([LT_SMP_CACHE_BYTES], 128, [Fallback 128-byte alignment for Linux enterprise hardware.])
+            ;;
+          riscv32*|riscv64*)
+            AC_MSG_RESULT([linux fallback RISC-V 64 bytes])
+            AC_DEFINE([LT_SMP_CACHE_BYTES], 64, [Fallback 64-byte alignment for Linux RISC-V hardware.])
+            ;;
+          loongarch32*|loongarch64*)
+            AC_MSG_RESULT([linux fallback LoongArch 64 bytes])
+            AC_DEFINE([LT_SMP_CACHE_BYTES], 64, [Fallback 64-byte alignment for Linux LoongArch hardware.])
+            ;;
+          *)
+            AC_MSG_RESULT([unrecognized CPU arch on Linux header fallback])
+            AC_MSG_FAILURE([Unrecognized CPU architecture ($host_cpu) on Linux fallback path. Aborting build.])
+            ;;
+        esac
+      ])
+      ;;
+
+    *)
+      # REGION: Cross-Platform Strict Hardware Mapping (macOS, FreeBSD, OpenBSD, NetBSD)
+      case "$host_cpu" in
+        x86_64*|amd64*|i386*|i486*|i586*|i686*)
+          # Explicit x86 desktop hardware baseline block
+          AC_MSG_RESULT([$host_os ($host_cpu) standard x86 64 bytes])
+          AC_DEFINE([LT_SMP_CACHE_BYTES], 64, [Standard 64-byte alignment for stable x86 hardware layout.])
+          ;;
+        arm*|aarch64*|powerpc*|ppc*|s390x*)
+          # Explicit modern enterprise and Apple Silicon hardware baseline block
+          AC_MSG_RESULT([$host_os ($host_cpu) stable enterprise 128 bytes])
+          AC_DEFINE([LT_SMP_CACHE_BYTES], 128, [Optimized 128-byte alignment for newer high-performance chipsets.])
+          ;;
+        *)
+          # STRICT ENFORCEMENT: Fail the build immediately if the CPU isn't explicitly known
+          AC_MSG_RESULT([unrecognized architecture])
+          AC_MSG_FAILURE([The target CPU architecture ($host_cpu) is unrecognized. Aborting configuration to prevent fatal runtime false-sharing or memory misalignment errors.])
+          ;;
+      esac
+      ;;
+  esac
 ])
 
 
-AC_DEFUN([TORRENT_DISABLE_INSTRUMENTATION], [
+AC_DEFUN([TORRENT_CHECK_CUSTOM_ENDIAN64], [
+  AC_CHECK_HEADERS([endian.h sys/endian.h libkern/OSByteOrder.h])
+  AC_C_BIGENDIAN
+
+  AH_TEMPLATE([CUSTOM_ENDIAN_HEADER], [The system header to include for endian conversions.])
+  AH_TEMPLATE([custom_ntohll], [Convert 64-bit integer from network to host byte order.])
+  AH_TEMPLATE([custom_htonll], [Convert 64-bit integer from host to network byte order.])
+
+  dnl 1. Initialize our header variable tracking
+  endian_header_file='<stdint.h>'
+
+  dnl 2. Test if native be64toh works natively via <endian.h> (Standard Linux/glibc)
+  AC_MSG_CHECKING([for native be64toh via endian.h])
+  AC_LINK_IFELSE([AC_LANG_SOURCE([
+      #include <stdint.h>
+      #ifdef HAVE_ENDIAN_H
+      #  include <endian.h>
+      #endif
+      int main() { uint64_t x = be64toh(1); return 0; }
+    ])],
+    [has_native_be64=yes; endian_header_file='<endian.h>'],
+    [has_native_be64=no]
+  )
+  AC_MSG_RESULT([$has_native_be64])
+
+  dnl 3. If missing, test if it works via <sys/endian.h> (True BSD systems like FreeBSD)
+  if test "$has_native_be64" = "no"; then
+    AC_MSG_CHECKING([for native be64toh via sys/endian.h])
+    AC_LINK_IFELSE([AC_LANG_SOURCE([
+        #include <stdint.h>
+        #ifdef HAVE_SYS_ENDIAN_H
+        #  include <sys/endian.h>
+        #endif
+        int main() { uint64_t x = be64toh(1); return 0; }
+      ])],
+      [has_native_be64=yes; endian_header_file='<sys/endian.h>'],
+      [has_native_be64=no]
+    )
+    AC_MSG_RESULT([$has_native_be64])
+  fi
+
+  dnl 4. Route definitions cleanly based on actual testing results
+  if test "$has_native_be64" = "yes"; then
+    dnl Linux or true BSD environment
+    AC_DEFINE_UNQUOTED([CUSTOM_ENDIAN_HEADER], [$endian_header_file], [The header containing native endian macros.])
+    AC_DEFINE([custom_ntohll(x)], [(be64toh(x))], [Use native platform be64toh])
+    AC_DEFINE([custom_htonll(x)], [(htobe64(x))], [Use native platform htobe64])
+  else
+    dnl Fallback block: Check if we are on macOS using Apple's optimized hardware libraries
+    if test "$ac_cv_header_libkern_OSByteOrder_h" = "yes"; then
+      AC_DEFINE([CUSTOM_ENDIAN_HEADER], [<libkern/OSByteOrder.h>], [The header containing native endian macros.])
+      AC_DEFINE([custom_ntohll(x)], [(OSSwapBigToHostInt64(x))], [Map missing be64toh to macOS native swap])
+      AC_DEFINE([custom_htonll(x)], [(OSSwapHostToBigInt64(x))], [Map missing htobe64 to macOS native swap])
+    else
+      dnl Fallback for platforms with no built-in architecture macros (compiler built-ins)
+      AC_DEFINE([CUSTOM_ENDIAN_HEADER], [<stdint.h>], [The header containing native endian macros.])
+      if test "$ac_cv_c_bigendian" = "yes"; then
+        AC_DEFINE([custom_ntohll(x)], [((uint64_t)(x))], [Fallback 64-bit conversion.])
+        AC_DEFINE([custom_htonll(x)], [((uint64_t)(x))], [Fallback 64-bit conversion.])
+      else
+        AC_DEFINE([custom_ntohll(x)], [(__builtin_bswap64((uint64_t)(x)))], [Fallback 64-bit conversion.])
+        AC_DEFINE([custom_htonll(x)], [(__builtin_bswap64((uint64_t)(x)))], [Fallback 64-bit conversion.])
+      fi
+    fi
+  fi
+])
+
+
+AC_DEFUN([TORRENT_ENABLE_INSTRUMENTATION], [
   AC_MSG_CHECKING([if instrumentation should be included])
 
   AC_ARG_ENABLE(instrumentation,
-    AS_HELP_STRING([--disable-instrumentation],
-      [disable instrumentation [[default=enabled]]]),
+    AS_HELP_STRING([--enable-instrumentation],
+      [enable instrumentation [[default=disabled]]]),
     [
       if test "$enableval" = "yes"; then
         AC_DEFINE(LT_INSTRUMENTATION, 1, enable instrumentation)
-	AC_MSG_RESULT(yes)
+        AC_MSG_RESULT(yes)
       else
-	AC_MSG_RESULT(no)
+        AC_MSG_RESULT(no)
       fi
     ],[
-      AC_DEFINE(LT_INSTRUMENTATION, 1, enable instrumentation)
-      AC_MSG_RESULT(yes)
+      AC_MSG_RESULT(no)
     ])
 ])
 
 
-AC_DEFUN([TORRENT_ENABLE_INTERRUPT_SOCKET], [
-  AC_ARG_ENABLE(interrupt-socket,
-    AS_HELP_STRING([--enable-interrupt-socket],
-      [enable interrupt socket [[default=no]]]),
-    [
-      if test "$enableval" = "yes"; then
-        AC_DEFINE(USE_INTERRUPT_SOCKET, 1, Use interrupt socket instead of pthread_kill)
-      fi
-    ]
-  )
+AC_DEFUN([TORRENT_ENABLE_CUSTOM_STACK_SIZE], [
+  AC_ARG_ENABLE([pthread-setstacksize],
+    [AS_HELP_STRING([--enable-pthread-setstacksize], [explicitly set pthread stack size (auto-enabled for musl)])],
+    [enable_pthread_setstacksize=$enableval],
+    [enable_pthread_setstacksize=auto])
+
+  AC_CANONICAL_HOST
+  if test "x$enable_pthread_setstacksize" = "xauto"; then
+    case "$host" in
+      *-musl*)
+        enable_pthread_setstacksize=yes
+        ;;
+      *)
+        enable_pthread_setstacksize=no
+        ;;
+    esac
+  fi
+
+  if test "x$enable_pthread_setstacksize" = "xyes"; then
+    AC_DEFINE([USE_PTHREAD_SETSTACKSIZE], [1], [Use explicit pthread stack size])
+    AC_DEFINE([DEFAULT_PTHREAD_STACKSIZE], [(8 * 1024 * 1024)], [Default pthread stack size in bytes])
+  fi
 ])
 
+
 AC_DEFUN([TORRENT_DISABLE_IPV6], [
   AC_ARG_ENABLE(ipv6,
     AS_HELP_STRING([--enable-ipv6],

src/Makefile.am

@@ -174,6 +174,10 @@ libsub_root_a_SOURCES = \
 	utils/list_focus.h \
 	utils/lockfile.cc \
 	utils/lockfile.h \
+	utils/waitpid_queue.cc \
+	utils/waitpid_queue.h \
+	utils/watch_ready_queue.cc \
+	utils/watch_ready_queue.h \
 	\
 	command_download.cc \
 	command_dynamic.cc \
@@ -203,4 +207,8 @@ libsub_root_a_SOURCES = \
 	signal_handler.h
 
 
+if NO_NCURSES
+libsub_root_a_SOURCES += display/curses_stub.cc display/curses_stub.h
+endif
+
 AM_CPPFLAGS = -I$(srcdir) -I$(top_srcdir) -DPACKAGE_DATADIR=\"$(pkgdatadir)\"

src/command_download.cc

@@ -5,11 +5,10 @@
 #include <functional>
 #include <netdb.h>
 #include <unistd.h>
-#include <rak/regex.h>
+#include <fnmatch.h>
 #include <torrent/rate.h>
 #include <torrent/throttle.h>
 #include <torrent/tracker/tracker.h>
-#include <torrent/connection_manager.h>
 #include <torrent/data/download_data.h>
 #include <torrent/data/file.h>
 #include <torrent/data/file_list.h>
@@ -18,6 +17,7 @@
 #include <torrent/net/types.h>
 #include <torrent/peer/connection_list.h>
 #include <torrent/peer/peer_list.h>
+#include <torrent/system/callbacks.h>
 #include <torrent/utils/file_stat.h>
 #include <torrent/utils/log.h>
 #include <torrent/utils/option_strings.h>
@@ -32,31 +32,34 @@
 #include "control.h"
 #include "command_helpers.h"
 
-std::string
+torrent::string_utf8
 retrieve_d_base_path(core::Download* download) {
   if (download->file_list()->is_multi_file())
     return download->file_list()->frozen_root_dir();
-  else
-    return download->file_list()->empty() ? std::string() : download->file_list()->at(0)->frozen_path();
+
+  if (download->file_list()->empty())
+    return {};
+
+  return download->file_list()->at(0)->frozen_path();
 }
 
-std::string
+torrent::string_utf8
 retrieve_d_base_filename(core::Download* download) {
-  const std::string* base;
+  torrent::string_utf8 base_path;
 
   if (download->file_list()->is_multi_file())
-    base = &download->file_list()->frozen_root_dir();
-  else if (download->file_list()->empty())
-    return std::string();
+    base_path = download->file_list()->frozen_root_dir();
+  else if (!download->file_list()->empty())
+    base_path = download->file_list()->at(0)->frozen_path();
   else
-    base = &download->file_list()->at(0)->frozen_path();
+    return {};
 
-  std::string::size_type split = base->rfind('/');
+  auto split = base_path.str().rfind('/');
 
   if (split == std::string::npos)
-    return *base;
-  else
-    return base->substr(split + 1);
+    return base_path;
+
+  return torrent::string_utf8::from_string(base_path.str().substr(split + 1));
 }
 
 torrent::Object
@@ -144,9 +147,9 @@ apply_d_directory(core::Download* download, const std::string& name) {
   if (!download->file_list()->is_multi_file())
     download->set_root_directory(name);
   else if (name.empty() || *name.rbegin() == '/')
-    download->set_root_directory(name + download->info()->name());
+    download->set_root_directory(name + download->info()->name().str());
   else
-    download->set_root_directory(name + "/" + download->info()->name());
+    download->set_root_directory(name + "/" + download->info()->name().str());
 }
 
 torrent::Object
@@ -160,8 +163,8 @@ apply_d_connection_type(core::Download* download, const std::string& name) {
 
 torrent::Object
 apply_d_choke_heuristics(core::Download* download, const std::string& name, bool is_down) {
-  torrent::Download::HeuristicType t =
-    (torrent::Download::HeuristicType)torrent::option_find_string(torrent::OPTION_CHOKE_HEURISTICS, name.c_str());
+  torrent::heuristics_enum t =
+    static_cast<torrent::heuristics_enum>(torrent::option_find_string(torrent::OPTION_CHOKE_HEURISTICS, name.c_str()));
 
   if (is_down)
     download->download()->set_download_choke_heuristic(t);
@@ -271,16 +274,6 @@ retrieve_d_custom_map(core::Download* download, bool keys_only, const torrent::O
   return result;
 }
 
-torrent::Object
-retrieve_d_bitfield(core::Download* download) {
-  const torrent::Bitfield* bitField = download->download()->file_list()->bitfield();
-
-  if (bitField->empty())
-    return torrent::Object("");
-
-  return torrent::Object(torrent::utils::transform_to_hex_str(*bitField));
-}
-
 void
 apply_d_add_peer(core::Download* download, const std::string& arg) {
   int port, ret;
@@ -305,8 +298,10 @@ apply_d_add_peer(core::Download* download, const std::string& arg) {
 
   assert(std::this_thread::get_id() == torrent::main_thread::thread_id());
 
+  auto callback_id = torrent::system::make_callback_id();
+
   // Currently discarding SOCK_STREAM.
-  torrent::this_thread::resolver()->resolve_preferred(NULL, host, AF_UNSPEC, AF_INET, [download, port](torrent::c_sa_shared_ptr sa, int err) {
+  torrent::this_thread::resolver()->resolve_preferred(callback_id, host, AF_UNSPEC, AF_INET, [download, port](torrent::c_sa_shared_ptr sa, int err) {
       if (sa == nullptr) {
         lt_log_print(torrent::LOG_TORRENT_WARN, "could not resolve hostname for added peer: %s", gai_strerror(err));
         return;
@@ -345,7 +340,7 @@ f_multicall(core::Download* download, const torrent::Object::list_type& args) {
   // parsing and searching command map for every single call.
   torrent::Object             resultRaw = torrent::Object::create_list();
   torrent::Object::list_type& result = resultRaw.as_list();
-  std::vector<rak::regex>     regex_list;
+  std::vector<std::string>    regex_list;
 
   bool use_regex = true;
 
@@ -359,7 +354,7 @@ f_multicall(core::Download* download, const torrent::Object::list_type& args) {
 
   for (const auto& file : *download->file_list()) {
     if (use_regex &&
-        std::none_of(regex_list.begin(), regex_list.end(), [&file](const auto& r) { return r(file->path()->as_string()); }))
+        std::none_of(regex_list.begin(), regex_list.end(), [&file](const auto& pattern) { return fnmatch(pattern.c_str(), file->path()->as_string().c_str(), 0) == 0; }))
       continue;
 
     torrent::Object::list_type& row = result.insert(result.end(), torrent::Object::create_list())->as_list();
@@ -383,18 +378,19 @@ t_multicall(core::Download* download, const torrent::Object::list_type& args) {
 
   // Add some pre-parsing of the commands, so we don't spend time
   // parsing and searching command map for every single call.
-  torrent::Object             result_raw = torrent::Object::create_list();
-  torrent::Object::list_type& result     = result_raw.as_list();
+
+  auto  result_raw = torrent::Object::create_list();
+  auto& result     = result_raw.as_list();
 
   for (uint32_t idx = 0, last = download->tracker_list_size(); idx < last; idx++) {
-    auto& row = result.insert(result.end(), torrent::Object::create_list())->as_list();
+    auto& row     = result.insert(result.end(), torrent::Object::create_list())->as_list();
     auto  tracker = download->tracker_controller().at(idx);
 
     if (!tracker.is_valid())
       continue;
 
-    for (torrent::Object::list_const_iterator cItr = ++args.begin(); cItr != args.end(); cItr++) {
-      const std::string& cmd = cItr->as_string();
+    for (auto cItr = ++args.begin(); cItr != args.end(); cItr++) {
+      auto& cmd = cItr->as_string();
 
       row.push_back(rpc::parse_command(rpc::make_target(&tracker), cmd.c_str(), cmd.c_str() + cmd.size()).first);
     }
@@ -413,13 +409,13 @@ p_multicall(core::Download* download, const torrent::Object::list_type& args) {
 
   // Add some pre-parsing of the commands, so we don't spend time
   // parsing and searching command map for every single call.
-  torrent::Object             resultRaw = torrent::Object::create_list();
-  torrent::Object::list_type& result = resultRaw.as_list();
+  auto  resultRaw = torrent::Object::create_list();
+  auto& result    = resultRaw.as_list();
 
   for (const auto& connection : *download->connection_list()) {
     torrent::Object::list_type& row = result.insert(result.end(), torrent::Object::create_list())->as_list();
 
-    for (torrent::Object::list_const_iterator cItr = ++args.begin(); cItr != args.end(); cItr++) {
+    for (auto cItr = ++args.begin(); cItr != args.end(); cItr++) {
       const std::string& cmd = cItr->as_string();
 
       row.push_back(rpc::parse_command(rpc::make_target(connection), cmd.c_str(), cmd.c_str() + cmd.size()).first);
@@ -648,30 +644,48 @@ void               cg_d_group_set(core::Download* download, const torrent::Objec
 
 void
 initialize_command_download() {
-  CMD2_DL("d.hash",          [](auto* download, auto) { return torrent::utils::transform_to_hex_str(download->info()->hash()); });
-  CMD2_DL("d.local_id",      [](auto* download, auto) { return torrent::utils::transform_to_hex_str(download->info()->local_id()); });
-  CMD2_DL("d.local_id_html", [](auto* download, auto) { return torrent::utils::copy_escape_html_str(download->info()->local_id()); });
-  CMD2_DL("d.bitfield",      std::bind(&retrieve_d_bitfield, std::placeholders::_1));
-  CMD2_DL("d.base_path",     std::bind(&retrieve_d_base_path, std::placeholders::_1));
-  CMD2_DL("d.base_filename", std::bind(&retrieve_d_base_filename, std::placeholders::_1));
+  CMD2_DL("d.hash",                           [](auto* download, auto) { return torrent::utils::transform_to_hex_str(download->info()->hash()); });
+  CMD2_DL("d.local_id",                       [](auto* download, auto) { return torrent::utils::transform_to_hex_str(download->info()->local_id()); });
+  CMD2_DL("d.local_id_html",                  [](auto* download, auto) { return torrent::utils::copy_escape_html_str(download->info()->local_id()); });
+  CMD2_DL("d.bitfield",                       [](auto* download, auto) { return torrent::utils::transform_to_hex_str(*download->download()->file_list()->bitfield()); });
+  CMD2_DL("d.base_path",                      [](auto* download, auto) { return retrieve_d_base_path(download).str(); });
+  CMD2_DL("d.base_path.hex",                  [](auto* download, auto) { return retrieve_d_base_path(download).object_hex(); });
+  CMD2_DL("d.base_path.base64",               [](auto* download, auto) { return retrieve_d_base_path(download).object_base64(); });
+  CMD2_DL("d.base_path.base64_as_binary",     [](auto* download, auto) { return retrieve_d_base_path(download).object_base64_as_binary(); });
+  CMD2_DL("d.base_path.as_binary",            [](auto* download, auto) { return retrieve_d_base_path(download).object_as_binary(); });
+  CMD2_DL("d.base_path.or_base64",            [](auto* download, auto) { return retrieve_d_base_path(download).object_utf8_or_base64(); });
+  CMD2_DL("d.base_path.or_as_binary",         [](auto* download, auto) { return retrieve_d_base_path(download).object_utf8_or_as_binary(); });
+  CMD2_DL("d.base_filename",                  [](auto* download, auto) { return retrieve_d_base_filename(download).str(); });
+  CMD2_DL("d.base_filename.hex",              [](auto* download, auto) { return retrieve_d_base_filename(download).object_hex(); });
+  CMD2_DL("d.base_filename.base64",           [](auto* download, auto) { return retrieve_d_base_filename(download).object_base64(); });
+  CMD2_DL("d.base_filename.base64_as_binary", [](auto* download, auto) { return retrieve_d_base_filename(download).object_base64_as_binary(); });
+  CMD2_DL("d.base_filename.as_binary",        [](auto* download, auto) { return retrieve_d_base_filename(download).object_as_binary(); });
+  CMD2_DL("d.base_filename.or_base64",        [](auto* download, auto) { return retrieve_d_base_filename(download).object_utf8_or_base64(); });
+  CMD2_DL("d.base_filename.or_as_binary",     [](auto* download, auto) { return retrieve_d_base_filename(download).object_utf8_or_as_binary(); });
 
-  CMD2_DL("d.name",          CMD2_ON_INFO(name));
-  CMD2_DL("d.creation_date", CMD2_ON_INFO(creation_date));
-  CMD2_DL("d.load_date",     CMD2_ON_INFO(load_date));
+  CMD2_DL("d.name",                           [](auto* download, auto) { return download->info()->name().str(); });
+  CMD2_DL("d.name.hex",                       [](auto* download, auto) { return download->info()->name().object_hex(); });
+  CMD2_DL("d.name.base64",                    [](auto* download, auto) { return download->info()->name().object_base64(); });
+  CMD2_DL("d.name.base64_as_binary",          [](auto* download, auto) { return download->info()->name().object_base64_as_binary(); });
+  CMD2_DL("d.name.as_binary",                 [](auto* download, auto) { return download->info()->name().object_as_binary(); });
+  CMD2_DL("d.name.or_base64",                 [](auto* download, auto) { return download->info()->name().object_utf8_or_base64(); });
+  CMD2_DL("d.name.or_as_binary",              [](auto* download, auto) { return download->info()->name().object_utf8_or_as_binary(); });
+  CMD2_DL("d.creation_date",                  [](auto* download, auto) { return download->info()->creation_date(); });
+  CMD2_DL("d.load_date",                      [](auto* download, auto) { return download->info()->load_date(); });
 
   //
   // Network related:
   //
 
-  CMD2_DL         ("d.up.rate",       std::bind(&torrent::Rate::rate,  CMD2_ON_INFO(up_rate)));
-  CMD2_DL         ("d.up.total",      std::bind(&torrent::Rate::total, CMD2_ON_INFO(up_rate)));
-  CMD2_DL         ("d.down.rate",     std::bind(&torrent::Rate::rate,  CMD2_ON_INFO(down_rate)));
-  CMD2_DL         ("d.down.total",    std::bind(&torrent::Rate::total, CMD2_ON_INFO(down_rate)));
-  CMD2_DL         ("d.skip.rate",     std::bind(&torrent::Rate::rate,  CMD2_ON_INFO(skip_rate)));
-  CMD2_DL         ("d.skip.total",    std::bind(&torrent::Rate::total, CMD2_ON_INFO(skip_rate)));
+  CMD2_DL         ("d.up.rate",           [](auto* download, auto) { return download->info()->up_rate()->rate(); });
+  CMD2_DL         ("d.up.total",          [](auto* download, auto) { return download->info()->up_rate()->total(); });
+  CMD2_DL         ("d.down.rate",         [](auto* download, auto) { return download->info()->down_rate()->rate(); });
+  CMD2_DL         ("d.down.total",        [](auto* download, auto) { return download->info()->down_rate()->total(); });
+  CMD2_DL         ("d.skip.rate",         [](auto* download, auto) { return download->info()->skip_rate()->rate(); });
+  CMD2_DL         ("d.skip.total",        [](auto* download, auto) { return download->info()->skip_rate()->total(); });
 
-  CMD2_DL         ("d.peer_exchange",     CMD2_ON_INFO(is_pex_enabled));
-  CMD2_DL_VALUE_V ("d.peer_exchange.set", std::bind(&torrent::Download::set_pex_enabled, CMD2_BIND_DL, std::placeholders::_2));
+  CMD2_DL         ("d.peer_exchange",     [](auto* download, auto)       { return download->info()->is_pex_enabled(); });
+  CMD2_DL_VALUE_V ("d.peer_exchange.set", [](auto* download, auto value) { download->download()->set_pex_enabled(value); });
 
   CMD2_DL_LIST    ("d.create_link", std::bind(&apply_d_change_link, std::placeholders::_1, std::placeholders::_2, 0));
   CMD2_DL_LIST    ("d.delete_link", std::bind(&apply_d_change_link, std::placeholders::_1, std::placeholders::_2, 1));
@@ -687,16 +701,16 @@ initialize_command_download() {
   // Control functinos:
   //
 
-  CMD2_DL         ("d.is_open",               CMD2_ON_INFO(is_open));
-  CMD2_DL         ("d.is_active",             CMD2_ON_INFO(is_active));
+  CMD2_DL         ("d.is_open",               [](auto* download, auto) { return download->info()->is_open(); });
+  CMD2_DL         ("d.is_active",             [](auto* download, auto) { return download->info()->is_active(); });
   CMD2_DL         ("d.is_hash_checked",       std::bind(&torrent::Download::is_hash_checked, CMD2_BIND_DL));
   CMD2_DL         ("d.is_hash_checking",      std::bind(&torrent::Download::is_hash_checking, CMD2_BIND_DL));
   CMD2_DL         ("d.is_multi_file",         std::bind(&torrent::FileList::is_multi_file, CMD2_BIND_FL));
-  CMD2_DL         ("d.is_private",            CMD2_ON_INFO(is_private));
-  CMD2_DL         ("d.is_pex_active",         CMD2_ON_INFO(is_pex_active));
+  CMD2_DL         ("d.is_private",            [](auto* download, auto) { return download->info()->is_private(); });
+  CMD2_DL         ("d.is_pex_active",         [](auto* download, auto) { return download->info()->is_pex_active(); });
   CMD2_DL         ("d.is_partially_done",     CMD2_ON_DATA(is_partially_done));
   CMD2_DL         ("d.is_not_partially_done", CMD2_ON_DATA(is_not_partially_done));
-  CMD2_DL         ("d.is_meta",               CMD2_ON_INFO(is_meta_download));
+  CMD2_DL         ("d.is_meta",               [](auto* download, auto) { return download->info()->is_meta_download(); });
 
   CMD2_DL_V       ("d.resume",     std::bind(&core::DownloadList::resume_default, control->core()->download_list(), std::placeholders::_1));
   CMD2_DL_V       ("d.pause",      std::bind(&core::DownloadList::pause_default, control->core()->download_list(), std::placeholders::_1));
@@ -767,15 +781,15 @@ initialize_command_download() {
   CMD2_DL_TIMESTAMP("d.timestamp.started",      "rtorrent", "timestamp.started");
   CMD2_DL_TIMESTAMP("d.timestamp.finished",     "rtorrent", "timestamp.finished");
 
-  CMD2_DL       ("d.connection_current",     std::bind(&torrent::option_as_string, torrent::OPTION_CONNECTION_TYPE, CMD2_ON_DL(connection_type)));
-  CMD2_DL_STRING("d.connection_current.set", std::bind(&apply_d_connection_type, std::placeholders::_1, std::placeholders::_2));
+  CMD2_DL         ("d.connection_current",     [](auto* d, auto)     { return torrent::option_to_c_str_or_throw(torrent::OPTION_CONNECTION_TYPE, d->download()->connection_type()); });
+  CMD2_DL_STRING_V("d.connection_current.set", [](auto* d, auto arg) { apply_d_connection_type(d, arg); });
 
   CMD2_DL_VAR_STRING("d.connection_leech",      "rtorrent", "connection_leech");
   CMD2_DL_VAR_STRING("d.connection_seed",       "rtorrent", "connection_seed");
 
-  CMD2_DL       ("d.up.choke_heuristics",       std::bind(&torrent::option_as_string, torrent::OPTION_CHOKE_HEURISTICS, CMD2_ON_DL(upload_choke_heuristic)));
+  CMD2_DL       ("d.up.choke_heuristics",       [](auto* d, auto)     { return torrent::option_to_c_str_or_throw(torrent::OPTION_CHOKE_HEURISTICS, d->download()->upload_choke_heuristic()); });
   CMD2_DL_STRING("d.up.choke_heuristics.set",   std::bind(&apply_d_choke_heuristics, std::placeholders::_1, std::placeholders::_2, false));
-  CMD2_DL       ("d.down.choke_heuristics",     std::bind(&torrent::option_as_string, torrent::OPTION_CHOKE_HEURISTICS, CMD2_ON_DL(download_choke_heuristic)));
+  CMD2_DL       ("d.down.choke_heuristics",     [](auto* d, auto)     { return torrent::option_to_c_str_or_throw(torrent::OPTION_CHOKE_HEURISTICS, d->download()->download_choke_heuristic()); });
   CMD2_DL_STRING("d.down.choke_heuristics.set", std::bind(&apply_d_choke_heuristics, std::placeholders::_1, std::placeholders::_2, true));
 
   CMD2_DL_VAR_STRING("d.up.choke_heuristics.leech", "rtorrent", "choke_heuristics.up.leech");
@@ -830,7 +844,7 @@ initialize_command_download() {
   CMD2_DL         ("d.bytes_done",     CMD2_ON_DL(bytes_done));
   CMD2_DL         ("d.ratio",          std::bind(&retrieve_d_ratio, std::placeholders::_1));
   CMD2_DL         ("d.chunks_hashed",  CMD2_ON_DL(chunks_hashed));
-  CMD2_DL         ("d.free_diskspace", CMD2_ON_FL(free_diskspace));
+  CMD2_DL         ("d.free_diskspace", [](auto* download, auto) { return download->file_list()->free_diskspace_no_cache(); });
 
   CMD2_DL         ("d.size_files",     CMD2_ON_FL(size_files));
   CMD2_DL         ("d.size_bytes",     CMD2_ON_FL(size_bytes));
@@ -898,8 +912,26 @@ initialize_command_download() {
   rpc::rpc.mark_safe("d.local_id_html");
   rpc::rpc.mark_safe("d.bitfield");
   rpc::rpc.mark_safe("d.base_path");
+  rpc::rpc.mark_safe("d.base_path.hex");
+  rpc::rpc.mark_safe("d.base_path.base64");
+  rpc::rpc.mark_safe("d.base_path.base64_as_binary");
+  rpc::rpc.mark_safe("d.base_path.as_binary");
+  rpc::rpc.mark_safe("d.base_path.or_base64");
+  rpc::rpc.mark_safe("d.base_path.or_as_binary");
   rpc::rpc.mark_safe("d.base_filename");
+  rpc::rpc.mark_safe("d.base_filename.hex");
+  rpc::rpc.mark_safe("d.base_filename.base64");
+  rpc::rpc.mark_safe("d.base_filename.base64_as_binary");
+  rpc::rpc.mark_safe("d.base_filename.as_binary");
+  rpc::rpc.mark_safe("d.base_filename.or_base64");
+  rpc::rpc.mark_safe("d.base_filename.or_as_binary");
   rpc::rpc.mark_safe("d.name");
+  rpc::rpc.mark_safe("d.name.hex");
+  rpc::rpc.mark_safe("d.name.base64");
+  rpc::rpc.mark_safe("d.name.base64_as_binary");
+  rpc::rpc.mark_safe("d.name.as_binary");
+  rpc::rpc.mark_safe("d.name.or_base64");
+  rpc::rpc.mark_safe("d.name.or_as_binary");
   rpc::rpc.mark_safe("d.directory");
   rpc::rpc.mark_safe("d.directory_base");
   rpc::rpc.mark_safe("d.creation_date");
@@ -941,6 +973,9 @@ initialize_command_download() {
   rpc::rpc.mark_safe("d.size_chunks");
   rpc::rpc.mark_safe("d.size_pex");
   rpc::rpc.mark_safe("d.completed_bytes");
+  rpc::rpc.mark_safe("d.complete");
+  rpc::rpc.mark_safe("d.timestamp.started");
+  rpc::rpc.mark_safe("d.timestamp.finished");
   rpc::rpc.mark_safe("d.bytes_done");
   rpc::rpc.mark_safe("d.peers_accounted");
   rpc::rpc.mark_safe("d.chunks_hashed");

src/command_dynamic.cc

@@ -444,16 +444,20 @@ initialize_command_dynamic() {
 
   CMD2_ANY         ("catch", std::bind(&cmd_catch, std::placeholders::_1, std::placeholders::_2));
 
-  CMD2_ANY         ("strings.choke_heuristics",          std::bind(&torrent::option_list_strings, torrent::OPTION_CHOKE_HEURISTICS));
-  CMD2_ANY         ("strings.choke_heuristics.upload",   std::bind(&torrent::option_list_strings, torrent::OPTION_CHOKE_HEURISTICS_UPLOAD));
-  CMD2_ANY         ("strings.choke_heuristics.download", std::bind(&torrent::option_list_strings, torrent::OPTION_CHOKE_HEURISTICS_DOWNLOAD));
-  CMD2_ANY         ("strings.connection_type",           std::bind(&torrent::option_list_strings, torrent::OPTION_CONNECTION_TYPE));
-  CMD2_ANY         ("strings.encryption",                std::bind(&torrent::option_list_strings, torrent::OPTION_ENCRYPTION));
-  CMD2_ANY         ("strings.ip_filter",                 std::bind(&torrent::option_list_strings, torrent::OPTION_IP_FILTER));
-  CMD2_ANY         ("strings.ip_tos",                    std::bind(&torrent::option_list_strings, torrent::OPTION_IP_TOS));
-  CMD2_ANY         ("strings.log_group",                 std::bind(&torrent::option_list_strings, torrent::OPTION_LOG_GROUP));
-  CMD2_ANY         ("strings.tracker_event",             std::bind(&torrent::option_list_strings, torrent::OPTION_TRACKER_EVENT));
-  CMD2_ANY         ("strings.tracker_mode",              std::bind(&torrent::option_list_strings, torrent::OPTION_TRACKER_MODE));
+  CMD2_ANY_STRING  ("enum.log_group",                    [](auto, const auto& str) { return torrent::option_find_string_str(torrent::OPTION_LOG_GROUP, str); });
+
+  CMD2_ANY         ("strings.choke_heuristics",          [](auto, auto) { return torrent::option_list_strings(torrent::OPTION_CHOKE_HEURISTICS); });
+  CMD2_ANY         ("strings.choke_heuristics.upload",   [](auto, auto) { return torrent::option_list_strings(torrent::OPTION_CHOKE_HEURISTICS_UPLOAD); });
+  CMD2_ANY         ("strings.choke_heuristics.download", [](auto, auto) { return torrent::option_list_strings(torrent::OPTION_CHOKE_HEURISTICS_DOWNLOAD); });
+  CMD2_ANY         ("strings.connection_type",           [](auto, auto) { return torrent::option_list_strings(torrent::OPTION_CONNECTION_TYPE); });
+  CMD2_ANY         ("strings.encryption",                [](auto, auto) { return torrent::Object::create_list(); });
+  CMD2_ANY         ("strings.encryption.handshake",      [](auto, auto) { return torrent::option_list_strings(torrent::OPTION_ENCRYPTION_HANDSHAKE); });
+  CMD2_ANY         ("strings.encryption.stream",         [](auto, auto) { return torrent::option_list_strings(torrent::OPTION_ENCRYPTION_STREAM); });
+  CMD2_ANY         ("strings.ip_filter",                 [](auto, auto) { return torrent::option_list_strings(torrent::OPTION_IP_FILTER); });
+  CMD2_ANY         ("strings.ip_tos",                    [](auto, auto) { return torrent::option_list_strings(torrent::OPTION_IP_TOS); });
+  CMD2_ANY         ("strings.log_group",                 [](auto, auto) { return torrent::option_list_strings(torrent::OPTION_LOG_GROUP); });
+  CMD2_ANY         ("strings.tracker_event",             [](auto, auto) { return torrent::option_list_strings(torrent::OPTION_TRACKER_EVENT); });
+  CMD2_ANY         ("strings.tracker_mode",              [](auto, auto) { return torrent::option_list_strings(torrent::OPTION_TRACKER_MODE); });
   // clang-format on
 
 #ifdef HAVE_XMLRPC_TINYXML2
@@ -468,6 +472,8 @@ initialize_command_dynamic() {
   rpc::rpc.mark_safe("method.rlookup");
   rpc::rpc.mark_safe("catch");
 
+  rpc::rpc.mark_safe("enum.log_group");
+
   rpc::rpc.mark_safe("strings.choke_heuristics");
   rpc::rpc.mark_safe("strings.choke_heuristics.upload");
   rpc::rpc.mark_safe("strings.choke_heuristics.download");

src/command_events.cc

@@ -2,6 +2,8 @@
 
 #include <functional>
 #include <cstdio>
+#include <string>
+#include <vector>
 #include <torrent/rate.h>
 #include <torrent/hash_string.h>
 #include <torrent/utils/log.h>
@@ -19,6 +21,7 @@
 #include "rpc/command_scheduler.h"
 #include "rpc/parse.h"
 #include "rpc/parse_commands.h"
+#include "utils/watch_ready_queue.h"
 
 torrent::Object
 apply_on_ratio(const torrent::Object& rawArgs) {
@@ -165,12 +168,14 @@ torrent::Object
 apply_close_low_diskspace(int64_t arg, uint32_t skip_priority) {
   bool closed = false;
 
+  torrent::FileList::cache_list cache;
+
   for (auto download : *control->core()->download_list()) {
     if (!download->is_downloading())
       continue;
     if (download->priority() >= skip_priority)
       continue;
-    if (download->file_list()->free_diskspace() >= (uint64_t)arg)
+    if (download->file_list()->free_diskspace(cache) >= (uint64_t)arg)
       continue;
 
     control->core()->download_list()->close(download);
@@ -253,11 +258,12 @@ torrent::Object
 d_multicall_filtered(const torrent::Object::list_type& args) {
   if (args.size() < 2)
     throw torrent::input_error("d.multicall.filtered requires at least 2 arguments.");
-  torrent::Object::list_const_iterator arg = args.begin();
+
+  auto arg = args.begin();
 
   // Find the given view
-  core::ViewManager* viewManager = control->view_manager();
-  core::ViewManager::iterator view_itr = viewManager->find(arg->as_string().empty() ? "default" : arg->as_string());
+  auto* viewManager = control->view_manager();
+  auto  view_itr    = viewManager->find(arg->as_string().empty() ? "default" : arg->as_string());
 
   if (view_itr == viewManager->end())
     throw torrent::input_error("Could not find view '" + arg->as_string() + "'.");
@@ -267,8 +273,9 @@ d_multicall_filtered(const torrent::Object::list_type& args) {
   (*view_itr)->filter_by(*++arg, dlist);
 
   // Generate result by iterating over all items
-  torrent::Object             resultRaw = torrent::Object::create_list();
-  torrent::Object::list_type& result = resultRaw.as_list();
+  auto  resultRaw = torrent::Object::create_list();
+  auto& result    = resultRaw.as_list();
+
   ++arg;  // skip to first command
 
   for (const auto& item : dlist) {
@@ -291,59 +298,74 @@ call_watch_command(const std::string& command, const std::string& path) {
 }
 
 torrent::Object
-directory_watch_added(const torrent::Object::list_type& args) {
+directory_watch(const torrent::Object::list_type& args, int flags) {
   if (args.size() != 2)
     throw torrent::input_error("Too few arguments.");
 
   auto& path = args.front().as_string();
   auto& command = args.back().as_string();
+  std::string expanded_path = expand_path(path);
 
   if (!control->directory_events()->open())
     throw torrent::input_error("Could not open inotify:" + std::string(std::strerror(errno)));
 
-  control->directory_events()->notify_on(path.c_str(),
-                                         torrent::directory_events::flag_on_added | torrent::directory_events::flag_on_updated,
-                                         std::bind(&call_watch_command, command, std::placeholders::_1));
+  torrent::watch_descriptor::slot_string slot =
+    flags == torrent::directory_events::flag_on_ready ?
+    torrent::watch_descriptor::slot_string([command](const auto& arg) { control->watch_ready_queue()->push(command, arg); }) :
+    torrent::watch_descriptor::slot_string(std::bind(&call_watch_command, command, std::placeholders::_1));
+
+  control->directory_events()->notify_on(expanded_path.c_str(), flags, slot);
   return torrent::Object();
 }
 
+torrent::Object
+directory_watch_added(const torrent::Object::list_type& args) {
+  return directory_watch(args,
+                         torrent::directory_events::flag_on_added |
+                         torrent::directory_events::flag_on_updated);
+}
+
+torrent::Object
+directory_watch_ready(const torrent::Object::list_type& args) {
+  return directory_watch(args,
+                         torrent::directory_events::flag_on_ready);
+}
+
 void
 initialize_command_events() {
-  CMD2_ANY_STRING  ("on_ratio",        std::bind(&apply_on_ratio, std::placeholders::_2));
+  CMD2_ANY_STRING  ("on_ratio",                   [](auto, auto& args) { return apply_on_ratio(args); });
 
-  CMD2_ANY         ("start_tied",      std::bind(&apply_start_tied));
-  CMD2_ANY         ("stop_untied",     std::bind(&apply_stop_untied));
-  CMD2_ANY         ("close_untied",    std::bind(&apply_close_untied));
-  CMD2_ANY         ("remove_untied",   std::bind(&apply_remove_untied));
+  CMD2_ANY         ("start_tied",                 [](auto, auto) { return apply_start_tied(); });
+  CMD2_ANY         ("stop_untied",                [](auto, auto) { return apply_stop_untied(); });
+  CMD2_ANY         ("close_untied",               [](auto, auto) { return apply_close_untied(); });
+  CMD2_ANY         ("remove_untied",              [](auto, auto) { return apply_remove_untied(); });
 
-  // TODO: Deprecate schedule2 in the future.
-  CMD2_ANY_LIST    ("schedule",         std::bind(&apply_schedule, std::placeholders::_2));
-  CMD2_ANY_LIST    ("schedule2",        std::bind(&apply_schedule, std::placeholders::_2));
-  CMD2_ANY_STRING_V("schedule.remove",  std::bind(&rpc::CommandScheduler::erase_str, control->command_scheduler(), std::placeholders::_2));
-  CMD2_ANY_STRING_V("schedule_remove2", std::bind(&rpc::CommandScheduler::erase_str, control->command_scheduler(), std::placeholders::_2));
+  CMD2_ANY_LIST    ("schedule",                   [](auto, auto& args) { return apply_schedule(args); });
+  CMD2_ANY_STRING_V("schedule.remove",            [](auto, auto& str) { return control->command_scheduler()->erase_str(str); });
 
-  CMD2_ANY_STRING_V("import",          std::bind(&apply_import, std::placeholders::_2));
-  CMD2_ANY_STRING_V("try_import",      std::bind(&apply_try_import, std::placeholders::_2));
+  CMD2_ANY_STRING_V("import",                     [](auto, auto& str) { return apply_import(str); });
+  CMD2_ANY_STRING_V("try_import",                 [](auto, auto& str) { return apply_try_import(str); });
 
-  CMD2_ANY_LIST    ("load.normal",        std::bind(&apply_load, std::placeholders::_2, core::Manager::create_quiet | core::Manager::create_tied));
-  CMD2_ANY_LIST    ("load.verbose",       std::bind(&apply_load, std::placeholders::_2, core::Manager::create_tied));
-  CMD2_ANY_LIST    ("load.start",         std::bind(&apply_load, std::placeholders::_2,
-                                                         core::Manager::create_quiet | core::Manager::create_tied | core::Manager::create_start));
-  CMD2_ANY_LIST    ("load.start_verbose", std::bind(&apply_load, std::placeholders::_2, core::Manager::create_tied  | core::Manager::create_start));
-  CMD2_ANY_LIST    ("load.raw",           std::bind(&apply_load, std::placeholders::_2, core::Manager::create_quiet | core::Manager::create_raw_data));
-  CMD2_ANY_LIST    ("load.raw_verbose",   std::bind(&apply_load, std::placeholders::_2, core::Manager::create_raw_data));
-  CMD2_ANY_LIST    ("load.raw_start",     std::bind(&apply_load, std::placeholders::_2,
-                                                         core::Manager::create_quiet | core::Manager::create_start | core::Manager::create_raw_data));
-  CMD2_ANY_LIST    ("load.raw_start_verbose", std::bind(&apply_load, std::placeholders::_2, core::Manager::create_start | core::Manager::create_raw_data));
+  CMD2_ANY_LIST    ("load.normal",                [](auto, auto& args) { return apply_load(args, core::Manager::create_quiet | core::Manager::create_tied); });
+  CMD2_ANY_LIST    ("load.verbose",               [](auto, auto& args) { return apply_load(args, core::Manager::create_tied); });
+  CMD2_ANY_LIST    ("load.start",                 [](auto, auto& args) { return apply_load(args, core::Manager::create_quiet | core::Manager::create_tied | core::Manager::create_start); });
+  CMD2_ANY_LIST    ("load.start_verbose",         [](auto, auto& args) { return apply_load(args, core::Manager::create_tied | core::Manager::create_start); });
+  CMD2_ANY_LIST    ("load.raw",                   [](auto, auto& args) { return apply_load(args, core::Manager::create_quiet | core::Manager::create_raw_data); });
+  CMD2_ANY_LIST    ("load.raw_verbose",           [](auto, auto& args) { return apply_load(args, core::Manager::create_raw_data); });
+  CMD2_ANY_LIST    ("load.raw_start",             [](auto, auto& args) { return apply_load(args, core::Manager::create_quiet | core::Manager::create_start | core::Manager::create_raw_data); });
+  CMD2_ANY_LIST    ("load.raw_start_verbose",     [](auto, auto& args) { return apply_load(args, core::Manager::create_start | core::Manager::create_raw_data); });
 
-  CMD2_ANY_VALUE   ("close_low_diskspace",        std::bind(&apply_close_low_diskspace, std::placeholders::_2, 99));
-  CMD2_ANY_VALUE   ("close_low_diskspace.normal", std::bind(&apply_close_low_diskspace, std::placeholders::_2, 3));
+  CMD2_ANY_VALUE   ("close_low_diskspace",        [](auto, auto& arg) { return apply_close_low_diskspace(arg, 99); });
+  CMD2_ANY_VALUE   ("close_low_diskspace.normal", [](auto, auto& arg) { return apply_close_low_diskspace(arg, 3); });
 
-  CMD2_ANY_LIST    ("download_list",       std::bind(&apply_download_list, std::placeholders::_2));
-  CMD2_ANY_LIST    ("d.multicall2",        std::bind(&d_multicall, std::placeholders::_2));
-  CMD2_ANY_LIST    ("d.multicall.filtered", std::bind(&d_multicall_filtered, std::placeholders::_2));
+  CMD2_ANY_LIST    ("download_list",              [](auto, auto& args) { return apply_download_list(args); });
 
-  CMD2_ANY_LIST    ("directory.watch.added", std::bind(&directory_watch_added, std::placeholders::_2));
+  // TODO: Deprecate d.multicall2. (6/2026)
+  CMD2_ANY_LIST    ("d.multicall",                [](auto, auto& args) { return d_multicall(args); });
+  CMD2_ANY_LIST    ("d.multicall.filtered",       [](auto, auto& args) { return d_multicall_filtered(args); });
+
+  CMD2_ANY_LIST    ("directory.watch.added",      [](auto, auto& args) { return directory_watch_added(args); });
+  CMD2_ANY_LIST    ("directory.watch.ready",      [](auto, auto& args) { return directory_watch_ready(args); });
 
   rpc::rpc.mark_safe("start_tied");
   rpc::rpc.mark_safe("stop_untied");
@@ -353,6 +375,6 @@ initialize_command_events() {
   rpc::rpc.mark_safe("close_low_diskspace");
   rpc::rpc.mark_safe("close_low_diskspace.normal");
   rpc::rpc.mark_safe("download_list");
-  rpc::rpc.mark_safe("d.multicall2");
+  rpc::rpc.mark_safe("d.multicall");
   rpc::rpc.mark_safe("d.multicall.filtered");
 }

src/command_file.cc

@@ -24,24 +24,34 @@ apply_f_path(torrent::File* file) {
   if (file->path()->empty())
     return std::string();
 
-  torrent::Object resultRaw(*file->path()->begin());
-  torrent::Object::string_type& result = resultRaw.as_string();
+  torrent::Object result_raw(file->path()->begin()->str());
+  auto&           result = result_raw.as_string();
 
   for (torrent::Path::const_iterator itr = ++file->path()->begin(), last = file->path()->end(); itr != last; itr++)
-    result += '/' + *itr;
+    result += '/' + itr->str();
 
-  return resultRaw;
+  return result_raw;
 }
 
 torrent::Object
-apply_f_path_components(torrent::File* file) {
-  torrent::Object resultRaw = torrent::Object::create_list();
-  torrent::Object::list_type& result = resultRaw.as_list();
+apply_f_path_components(torrent::File* file, int output_type) {
+  auto  result_raw = torrent::Object::create_list();
+  auto& result = result_raw.as_list();
 
-  for (const auto& itr : *file->path())
-    result.push_back(itr);
+  for (const auto& itr : *file->path()) {
+    switch (output_type) {
+    case 0: result.push_back(itr.str());                      break;
+    case 1: result.push_back(itr.object_hex());               break;
+    case 2: result.push_back(itr.object_base64());            break;
+    case 3: result.push_back(itr.object_base64_as_binary());  break;
+    case 4: result.push_back(itr.object_as_binary());         break;
+    case 5: result.push_back(itr.object_utf8_or_base64());    break;
+    case 6: result.push_back(itr.object_utf8_or_as_binary()); break;
+    default: throw torrent::input_error("apply_f_path_components(): invalid output type");
+    };
+  }
 
-  return resultRaw;
+  return result_raw;
 }
 
 torrent::Object
@@ -57,7 +67,7 @@ apply_fi_filename_last(torrent::FileListIterator* itr) {
   if (itr->depth() >= itr->file()->path()->size())
     return "ERROR";
 
-  return itr->file()->path()->at(itr->depth());
+  return itr->file()->path()->at(itr->depth()).str();
 }
 
 void
@@ -80,21 +90,32 @@ initialize_command_file() {
   CMD2_FILE_V("f.prioritize_last.enable",   std::bind(&torrent::File::set_flags,   std::placeholders::_1, torrent::File::flag_prioritize_last));
   CMD2_FILE_V("f.prioritize_last.disable",  std::bind(&torrent::File::unset_flags, std::placeholders::_1, torrent::File::flag_prioritize_last));
 
-  CMD2_FILE("f.size_bytes",             std::bind(&torrent::File::size_bytes, std::placeholders::_1));
-  CMD2_FILE("f.size_chunks",            std::bind(&torrent::File::size_chunks, std::placeholders::_1));
-  CMD2_FILE("f.completed_chunks",       std::bind(&torrent::File::completed_chunks, std::placeholders::_1));
+  CMD2_FILE("f.size_bytes",                       [](auto* file, auto)   { return file->size_bytes(); });
+  CMD2_FILE("f.size_chunks",                      [](auto* file, auto)   { return file->size_chunks(); });
+  CMD2_FILE("f.completed_chunks",                 [](auto* file, auto)   { return file->completed_chunks(); });
 
-  CMD2_FILE("f.offset",                 std::bind(&torrent::File::offset, std::placeholders::_1));
-  CMD2_FILE("f.range_first",            std::bind(&torrent::File::range_first, std::placeholders::_1));
-  CMD2_FILE("f.range_second",           std::bind(&torrent::File::range_second, std::placeholders::_1));
+  CMD2_FILE("f.offset",                           [](auto* file, auto)   { return file->offset(); });
+  CMD2_FILE("f.range_first",                      [](auto* file, auto)   { return file->range_first(); });
+  CMD2_FILE("f.range_second",                     [](auto* file, auto)   { return file->range_second(); });
 
-  CMD2_FILE("f.priority",               std::bind(&torrent::File::priority, std::placeholders::_1));
-  CMD2_FILE_VALUE_V("f.priority.set",   std::bind(&apply_f_set_priority, std::placeholders::_1, std::placeholders::_2));
+  CMD2_FILE("f.priority",                         [](auto* file, auto)   { return file->priority(); });
+  CMD2_FILE_VALUE_V("f.priority.set",             [](auto* file, auto v) { apply_f_set_priority(file, v); });
 
-  CMD2_FILE("f.path",                   std::bind(&apply_f_path, std::placeholders::_1));
-  CMD2_FILE("f.path_components",        std::bind(&apply_f_path_components, std::placeholders::_1));
-  CMD2_FILE("f.path_depth",             std::bind(&apply_f_path_depth, std::placeholders::_1));
-  CMD2_FILE("f.frozen_path",            std::bind(&torrent::File::frozen_path, std::placeholders::_1));
+  CMD2_FILE("f.path",                             [](auto* file, auto)   { return apply_f_path(file); });
+  CMD2_FILE("f.path_components",                  [](auto* file, auto)   { return apply_f_path_components(file, 0); });
+  CMD2_FILE("f.path_components.hex",              [](auto* file, auto)   { return apply_f_path_components(file, 1); });
+  CMD2_FILE("f.path_components.base64",           [](auto* file, auto)   { return apply_f_path_components(file, 2); });
+  CMD2_FILE("f.path_components.base64_as_binary", [](auto* file, auto)   { return apply_f_path_components(file, 3); });
+  CMD2_FILE("f.path_components.as_binary",        [](auto* file, auto)   { return apply_f_path_components(file, 4); });
+  CMD2_FILE("f.path_components.or_base64",        [](auto* file, auto)   { return apply_f_path_components(file, 5); });
+  CMD2_FILE("f.path_components.or_as_binary",     [](auto* file, auto)   { return apply_f_path_components(file, 6); });
+  CMD2_FILE("f.path_depth",                       [](auto* file, auto)   { return apply_f_path_depth(file); });
+  CMD2_FILE("f.frozen_path",                      [](auto* file, auto)   { return file->frozen_path().str(); });
+  CMD2_FILE("f.frozen_path.hex",                  [](auto* file, auto)   { return file->frozen_path().object_hex(); });
+  CMD2_FILE("f.frozen_path.base64",               [](auto* file, auto)   { return file->frozen_path().object_base64(); });
+  CMD2_FILE("f.frozen_path.as_binary",            [](auto* file, auto)   { return file->frozen_path().object_as_binary(); });
+  CMD2_FILE("f.frozen_path.or_base64",            [](auto* file, auto)   { return file->frozen_path().object_utf8_or_base64(); });
+  CMD2_FILE("f.frozen_path.or_as_binary",         [](auto* file, auto)   { return file->frozen_path().object_utf8_or_as_binary(); });
 
   CMD2_FILE("f.match_depth_prev",       std::bind(&torrent::File::match_depth_prev, std::placeholders::_1));
   CMD2_FILE("f.match_depth_next",       std::bind(&torrent::File::match_depth_next, std::placeholders::_1));
@@ -108,6 +129,12 @@ initialize_command_file() {
   rpc::rpc.mark_safe("f.path_components");
   rpc::rpc.mark_safe("f.path_depth");
   rpc::rpc.mark_safe("f.frozen_path");
+  rpc::rpc.mark_safe("f.frozen_path.hex");
+  rpc::rpc.mark_safe("f.frozen_path.base64");
+  rpc::rpc.mark_safe("f.frozen_path.base64_as_binary");
+  rpc::rpc.mark_safe("f.frozen_path.as_binary");
+  rpc::rpc.mark_safe("f.frozen_path.or_base64");
+  rpc::rpc.mark_safe("f.frozen_path.or_as_binary");
   rpc::rpc.mark_safe("f.offset");
   rpc::rpc.mark_safe("f.size_bytes");
   rpc::rpc.mark_safe("f.size_chunks");

src/command_groups.cc

@@ -186,8 +186,8 @@ apply_cg_insert(const std::string& arg) {
   cg_list_hack.push_back(new torrent::choke_group());
   cg_list_hack.back()->set_name(arg);
 
-  cg_list_hack.back()->up_queue()->set_heuristics(torrent::choke_queue::HEURISTICS_UPLOAD_LEECH);
-  cg_list_hack.back()->down_queue()->set_heuristics(torrent::choke_queue::HEURISTICS_DOWNLOAD_LEECH);
+  cg_list_hack.back()->up_queue()->set_heuristics(torrent::HEURISTICS_UPLOAD_LEECH);
+  cg_list_hack.back()->down_queue()->set_heuristics(torrent::HEURISTICS_DOWNLOAD_LEECH);
 
   return torrent::Object();
 }
@@ -337,54 +337,51 @@ options.
 
 void
 initialize_command_groups() {
-  CMD2_ANY         ("choke_group.list",                std::bind(&apply_cg_list));
-  CMD2_ANY_STRING  ("choke_group.insert",              std::bind(&apply_cg_insert, std::placeholders::_2));
+  CMD_ANY         ("choke_group.list",                std::bind(&apply_cg_list));
+  CMD_ANY_STRING  ("choke_group.insert",              std::bind(&apply_cg_insert, std::placeholders::_2));
 
 #if USE_CHOKE_GROUP
-  CMD2_ANY         ("choke_group.size",                std::bind(&torrent::ResourceManager::group_size, torrent::resource_manager()));
-  CMD2_ANY_STRING  ("choke_group.index_of",            std::bind(&torrent::ResourceManager::group_index_of, torrent::resource_manager(), std::placeholders::_2));
+  CMD_ANY         ("choke_group.size",                std::bind(&torrent::ResourceManager::group_size, torrent::resource_manager()));
+  CMD_ANY_STRING  ("choke_group.index_of",            std::bind(&torrent::ResourceManager::group_index_of, torrent::resource_manager(), std::placeholders::_2));
 #else
   apply_cg_insert("default");
 
-  CMD2_ANY         ("choke_group.size",                std::bind(&std::vector<torrent::choke_group*>::size, cg_list_hack));
-  CMD2_ANY_STRING  ("choke_group.index_of",            std::bind(&apply_cg_index_of, std::placeholders::_2));
+  CMD_ANY         ("choke_group.size",                std::bind(&std::vector<torrent::choke_group*>::size, cg_list_hack));
+  CMD_ANY_STRING  ("choke_group.index_of",            std::bind(&apply_cg_index_of, std::placeholders::_2));
 #endif
 
   // Commands specific for a group. Supports as the first argument the
   // name, the index or a negative index.
-  CMD2_ANY         ("choke_group.general.size",        std::bind(&torrent::choke_group::size, CG_GROUP_AT()));
+  CMD_ANY         ("choke_group.general.size",        std::bind(&torrent::choke_group::size, CG_GROUP_AT()));
 
-  CMD2_ANY         ("choke_group.tracker.mode",        std::bind(&torrent::option_as_string, torrent::OPTION_TRACKER_MODE,
-                                                                 std::bind(&torrent::choke_group::tracker_mode, CG_GROUP_AT())));
-  CMD2_ANY_LIST    ("choke_group.tracker.mode.set",    std::bind(&apply_cg_tracker_mode_set, std::placeholders::_2));
+  CMD_ANY         ("choke_group.tracker.mode",        [](auto, auto arg) { return torrent::option_to_str_or_throw(torrent::OPTION_TRACKER_MODE, cg_get_group(arg)->tracker_mode()); });
+  CMD_ANY_LIST    ("choke_group.tracker.mode.set",    [](auto, auto arg) { return apply_cg_tracker_mode_set(arg); });
 
-  CMD2_ANY         ("choke_group.all.up.update_balance",   std::bind(&apply_cg_all_update_balance, true));
-  CMD2_ANY         ("choke_group.all.down.update_balance", std::bind(&apply_cg_all_update_balance, false));
+  CMD_ANY         ("choke_group.all.up.update_balance",   std::bind(&apply_cg_all_update_balance, true));
+  CMD_ANY         ("choke_group.all.down.update_balance", std::bind(&apply_cg_all_update_balance, false));
 
-  CMD2_ANY         ("choke_group.up.rate",             std::bind(&torrent::choke_group::up_rate, CG_GROUP_AT()));
-  CMD2_ANY         ("choke_group.down.rate",           std::bind(&torrent::choke_group::down_rate, CG_GROUP_AT()));
+  CMD_ANY         ("choke_group.up.rate",             std::bind(&torrent::choke_group::up_rate, CG_GROUP_AT()));
+  CMD_ANY         ("choke_group.down.rate",           std::bind(&torrent::choke_group::down_rate, CG_GROUP_AT()));
 
-  CMD2_ANY         ("choke_group.up.max.unlimited",    std::bind(&torrent::choke_queue::is_unlimited, CHOKE_GROUP(&torrent::choke_group::up_queue)));
-  CMD2_ANY         ("choke_group.up.max",              std::bind(&torrent::choke_queue::max_unchoked_signed, CHOKE_GROUP(&torrent::choke_group::up_queue)));
-  CMD2_ANY_LIST    ("choke_group.up.max.set",          std::bind(&apply_cg_max_set, std::placeholders::_2, true));
+  CMD_ANY         ("choke_group.up.max.unlimited",    std::bind(&torrent::choke_queue::is_unlimited, CHOKE_GROUP(&torrent::choke_group::up_queue)));
+  CMD_ANY         ("choke_group.up.max",              std::bind(&torrent::choke_queue::max_unchoked_signed, CHOKE_GROUP(&torrent::choke_group::up_queue)));
+  CMD_ANY_LIST    ("choke_group.up.max.set",          std::bind(&apply_cg_max_set, std::placeholders::_2, true));
 
-  CMD2_ANY         ("choke_group.up.total",            std::bind(&torrent::choke_queue::size_total, CHOKE_GROUP(&torrent::choke_group::up_queue)));
-  CMD2_ANY         ("choke_group.up.queued",           std::bind(&torrent::choke_queue::size_queued, CHOKE_GROUP(&torrent::choke_group::up_queue)));
-  CMD2_ANY         ("choke_group.up.unchoked",         std::bind(&torrent::choke_queue::size_unchoked, CHOKE_GROUP(&torrent::choke_group::up_queue)));
-  CMD2_ANY         ("choke_group.up.heuristics",       std::bind(&torrent::option_as_string, torrent::OPTION_CHOKE_HEURISTICS,
-                                                                 std::bind(&torrent::choke_queue::heuristics, CHOKE_GROUP(&torrent::choke_group::up_queue))));
-  CMD2_ANY_LIST    ("choke_group.up.heuristics.set",   std::bind(&apply_cg_heuristics_set, std::placeholders::_2, true));
+  CMD_ANY         ("choke_group.up.total",            std::bind(&torrent::choke_queue::size_total, CHOKE_GROUP(&torrent::choke_group::up_queue)));
+  CMD_ANY         ("choke_group.up.queued",           std::bind(&torrent::choke_queue::size_queued, CHOKE_GROUP(&torrent::choke_group::up_queue)));
+  CMD_ANY         ("choke_group.up.unchoked",         std::bind(&torrent::choke_queue::size_unchoked, CHOKE_GROUP(&torrent::choke_group::up_queue)));
+  CMD_ANY         ("choke_group.up.heuristics",       [](auto, auto arg) { return torrent::option_to_str_or_throw(torrent::OPTION_CHOKE_HEURISTICS, cg_get_group(arg)->up_queue()->heuristics()); });
+  CMD_ANY_LIST    ("choke_group.up.heuristics.set",   [](auto, auto arg) { return apply_cg_heuristics_set(arg, true); });
 
-  CMD2_ANY         ("choke_group.down.max.unlimited",  std::bind(&torrent::choke_queue::is_unlimited, CHOKE_GROUP(&torrent::choke_group::down_queue)));
-  CMD2_ANY         ("choke_group.down.max",            std::bind(&torrent::choke_queue::max_unchoked_signed, CHOKE_GROUP(&torrent::choke_group::down_queue)));
-  CMD2_ANY_LIST    ("choke_group.down.max.set",        std::bind(&apply_cg_max_set, std::placeholders::_2, false));
+  CMD_ANY         ("choke_group.down.max.unlimited",  std::bind(&torrent::choke_queue::is_unlimited, CHOKE_GROUP(&torrent::choke_group::down_queue)));
+  CMD_ANY         ("choke_group.down.max",            std::bind(&torrent::choke_queue::max_unchoked_signed, CHOKE_GROUP(&torrent::choke_group::down_queue)));
+  CMD_ANY_LIST    ("choke_group.down.max.set",        std::bind(&apply_cg_max_set, std::placeholders::_2, false));
 
-  CMD2_ANY         ("choke_group.down.total",          std::bind(&torrent::choke_queue::size_total, CHOKE_GROUP(&torrent::choke_group::down_queue)));
-  CMD2_ANY         ("choke_group.down.queued",         std::bind(&torrent::choke_queue::size_queued, CHOKE_GROUP(&torrent::choke_group::down_queue)));
-  CMD2_ANY         ("choke_group.down.unchoked",       std::bind(&torrent::choke_queue::size_unchoked, CHOKE_GROUP(&torrent::choke_group::down_queue)));
-  CMD2_ANY         ("choke_group.down.heuristics",     std::bind(&torrent::option_as_string, torrent::OPTION_CHOKE_HEURISTICS,
-                                                                 std::bind(&torrent::choke_queue::heuristics, CHOKE_GROUP(&torrent::choke_group::down_queue))));
-  CMD2_ANY_LIST    ("choke_group.down.heuristics.set", std::bind(&apply_cg_heuristics_set, std::placeholders::_2, false));
+  CMD_ANY         ("choke_group.down.total",          std::bind(&torrent::choke_queue::size_total, CHOKE_GROUP(&torrent::choke_group::down_queue)));
+  CMD_ANY         ("choke_group.down.queued",         std::bind(&torrent::choke_queue::size_queued, CHOKE_GROUP(&torrent::choke_group::down_queue)));
+  CMD_ANY         ("choke_group.down.unchoked",       std::bind(&torrent::choke_queue::size_unchoked, CHOKE_GROUP(&torrent::choke_group::down_queue)));
+  CMD_ANY         ("choke_group.down.heuristics",     [](auto, auto arg) { return torrent::option_to_str_or_throw(torrent::OPTION_CHOKE_HEURISTICS, cg_get_group(arg)->down_queue()->heuristics()); });
+  CMD_ANY_LIST    ("choke_group.down.heuristics.set", [](auto, auto arg) { return apply_cg_heuristics_set(arg, false); });
 
   rpc::rpc.mark_safe("choke_group.list");
   rpc::rpc.mark_safe("choke_group.size");

src/command_helpers.h

@@ -7,6 +7,25 @@
 
 void initialize_commands();
 
+//
+// Aliases with CMD_* for the below
+//
+
+#define CMD_ANY(key, slot)                CMD2_ANY(key, slot)
+#define CMD_ANY_P(key, slot)              CMD2_ANY_P(key, slot)
+#define CMD_REDIRECT(key, slot)           CMD2_REDIRECT(key, slot)
+#define CMD_REDIRECT_NO_EXPORT(key, slot) CMD2_REDIRECT_NO_EXPORT(key, slot)
+#define CMD_ANY_STRING(key, slot)         CMD2_ANY_STRING(key, slot)
+#define CMD_ANY_STRING_V(key, slot)       CMD2_ANY_STRING_V(key, slot)
+#define CMD_ANY_LIST(key, slot)           CMD2_ANY_LIST(key, slot)
+#define CMD_VAR_VALUE(key, value)         CMD2_VAR_VALUE(key, value)
+#define CMD_VAR_BOOL(key, value)          CMD2_VAR_BOOL(key, value)
+#define CMD_VAR_STRING(key, value)        CMD2_VAR_STRING(key, value)
+#define CMD_VAR_C_STRING(key, value)      CMD2_VAR_C_STRING(key, value)
+#define CMD_VAR_LIST(key)                 CMD2_VAR_LIST(key)
+#define CMD_ANY_V(key, slot)              CMD2_ANY_V(key, slot)
+#define CMD_ANY_VALUE_V(key, slot)        CMD2_ANY_VALUE_V(key, slot)
+
 //
 // New std::function based command_base helper functions:
 //
@@ -115,7 +134,6 @@ void initialize_commands();
 #define CMD2_REDIRECT_TRACKER(from_key, to_key) \
   rpc::commands.create_redirect(from_key, to_key, rpc::CommandMap::flag_public_rpc | rpc::CommandMap::flag_tracker_target | rpc::CommandMap::flag_dont_delete);
 
-
 //
 // Conversion of return types:
 //

src/command_ip.cc

@@ -353,7 +353,7 @@ apply_ipv4_filter_dump() {
     inet_ntop(AF_INET, &net_start, start_str, INET_ADDRSTRLEN);
     inet_ntop(AF_INET, &net_end, end_str, INET_ADDRSTRLEN);
 
-    snprintf(buffer, 64, "%s-%s %s", start_str, end_str, torrent::option_as_string(torrent::OPTION_IP_FILTER, value));
+    snprintf(buffer, 64, "%s-%s %s", start_str, end_str, torrent::option_to_c_str_or_throw(torrent::OPTION_IP_FILTER, value));
 
     result.push_back((std::string)buffer);
 

src/command_local.cc

@@ -8,10 +8,11 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <torrent/torrent.h>
-#include <torrent/chunk_manager.h>
 #include <torrent/data/file_manager.h>
 #include <torrent/data/chunk_utils.h>
 #include <torrent/runtime/runtime.h>
+#include <torrent/runtime/memory_manager.h>
+#include <torrent/runtime/socket_manager.h>
 #include <torrent/utils/chrono.h>
 #include <torrent/utils/option_strings.h>
 
@@ -114,9 +115,9 @@ group_insert(const torrent::Object::list_type& args) {
   const std::string& view = check_name(post_increment(itr, last)->as_string());
 
   rpc::commands.call("method.insert", rpc::create_object_list("group." + name + ".ratio.enable", "simple",
-                                                              "schedule2=group." + name + ".ratio,5,60,on_ratio=" + name));
+                                                              "schedule=group." + name + ".ratio,5,60,on_ratio=" + name));
   rpc::commands.call("method.insert", rpc::create_object_list("group." + name + ".ratio.disable", "simple",
-                                                              "schedule_remove2=group." + name + ".ratio"));
+                                                              "schedule.remove=group." + name + ".ratio"));
   rpc::commands.call("method.insert", rpc::create_object_list("group."  + name + ".ratio.command", "simple",
                                                               "d.try_close= ;d.ignore_commands.set=1"));
   rpc::commands.call("method.insert", rpc::create_object_list("group." + name + ".view", "string", view));
@@ -133,19 +134,6 @@ group_insert(const torrent::Object::list_type& args) {
   rpc::rpc.mark_safe("group." + name + ".ratio.upload");
   rpc::rpc.mark_safe("group." + name + ".ratio.upload.set");
 
-  if (rpc::call_command_value("method.use_intermediate") == 3) {
-    // Cleaned up in 0.16.1:
-
-    CMD2_REDIRECT_MUTABLE("group2." + name + ".view",             "group." + name + ".view");
-    CMD2_REDIRECT_MUTABLE("group2." + name + ".view.set",         "group." + name + ".view.set");
-    CMD2_REDIRECT_MUTABLE("group2." + name + ".ratio.min",        "group." + name + ".ratio.min");
-    CMD2_REDIRECT_MUTABLE("group2." + name + ".ratio.min.set",    "group." + name + ".ratio.min.set");
-    CMD2_REDIRECT_MUTABLE("group2." + name + ".ratio.max",        "group." + name + ".ratio.max");
-    CMD2_REDIRECT_MUTABLE("group2." + name + ".ratio.max.set",    "group." + name + ".ratio.max.set");
-    CMD2_REDIRECT_MUTABLE("group2." + name + ".ratio.upload",     "group." + name + ".ratio.upload");
-    CMD2_REDIRECT_MUTABLE("group2." + name + ".ratio.upload.set", "group." + name + ".ratio.upload.set");
-  }
-
   return name;
 }
 
@@ -200,142 +188,160 @@ cmd_file_append(const torrent::Object::list_type& args) {
 void
 initialize_command_local() {
   core::DownloadList*    dList = control->core()->download_list();
-  torrent::ChunkManager* chunkManager = torrent::chunk_manager();
   torrent::FileManager*  fileManager = torrent::file_manager();
 
-  CMD2_ANY         ("system.hostname", std::bind(&system_hostname));
-  CMD2_ANY         ("system.pid",      std::bind(&getpid));
+  CMD_ANY         ("system.hostname", std::bind(&system_hostname));
+  CMD_ANY         ("system.pid",      std::bind(&getpid));
 
-  CMD2_VAR_C_STRING("system.api_version",           (int64_t)API_VERSION);
-  CMD2_VAR_C_STRING("system.client_version",        PACKAGE_VERSION);
-  CMD2_VAR_C_STRING("system.library_version",       torrent::runtime::version());
+  CMD_VAR_C_STRING("system.api_version",           (int64_t)API_VERSION);
+  CMD_VAR_C_STRING("system.client_version",        PACKAGE_VERSION);
+  CMD_VAR_C_STRING("system.library_version",       torrent::runtime::version());
 
-  CMD2_VAR_VALUE   ("system.file.allocate",         0);
-  CMD2_VAR_VALUE   ("system.file.max_size",         (int64_t)512 << 30);
-  CMD2_VAR_VALUE   ("system.file.split_size",       -1);
-  CMD2_VAR_STRING  ("system.file.split_suffix",     ".part");
+  CMD_VAR_VALUE   ("system.file.allocate",         0);
+  CMD_VAR_VALUE   ("system.file.max_size",         (int64_t)512 << 30);
+  CMD_VAR_VALUE   ("system.file.split_size",       -1);
+  CMD_VAR_STRING  ("system.file.split_suffix",     ".part");
 
-  CMD2_ANY         ("system.file_status_cache.size",   std::bind(&utils::FileStatusCache::size,
+  CMD_ANY         ("system.file_status_cache.size",   std::bind(&utils::FileStatusCache::size,
                                                                  (utils::FileStatusCache::base_type*)control->core()->file_status_cache()));
-  CMD2_ANY_V       ("system.file_status_cache.prune",  std::bind(&utils::FileStatusCache::prune, control->core()->file_status_cache()));
+  CMD_ANY_V       ("system.file_status_cache.prune",  std::bind(&utils::FileStatusCache::prune, control->core()->file_status_cache()));
 
-  CMD2_VAR_BOOL    ("file.prioritize_toc",          0);
-  CMD2_VAR_LIST    ("file.prioritize_toc.first");
-  CMD2_VAR_LIST    ("file.prioritize_toc.last");
+  CMD_VAR_BOOL    ("file.prioritize_toc",          0);
+  CMD_VAR_LIST    ("file.prioritize_toc.first");
+  CMD_VAR_LIST    ("file.prioritize_toc.last");
 
-  CMD2_ANY         ("system.files.advise_random",             std::bind(&FM_t::advise_random, fileManager));
-  CMD2_ANY_VALUE_V ("system.files.advise_random.set",         std::bind(&FM_t::set_advise_random, fileManager, std::placeholders::_2));
-  CMD2_ANY         ("system.files.advise_random.hashing",     std::bind(&FM_t::advise_random_hashing, fileManager));
-  CMD2_ANY_VALUE_V ("system.files.advise_random.hashing.set", std::bind(&FM_t::set_advise_random_hashing, fileManager, std::placeholders::_2));
-  CMD2_ANY         ("system.files.session.fdatasync",         [](auto, auto)        { return session_thread::manager()->use_fsyncdisk(); });
-  CMD2_ANY_VALUE_V ("system.files.session.fdatasync.set",     [](auto, auto& value) { return session_thread::manager()->set_use_fsyncdisk(value); });
+  CMD_ANY         ("system.files.advise_random",             std::bind(&FM_t::advise_random, fileManager));
+  CMD_ANY_VALUE_V ("system.files.advise_random.set",         std::bind(&FM_t::set_advise_random, fileManager, std::placeholders::_2));
+  CMD_ANY         ("system.files.advise_random.hashing",     std::bind(&FM_t::advise_random_hashing, fileManager));
+  CMD_ANY_VALUE_V ("system.files.advise_random.hashing.set", std::bind(&FM_t::set_advise_random_hashing, fileManager, std::placeholders::_2));
+  CMD_ANY         ("system.files.session.fdatasync",         [](auto, auto)        { return session_thread::manager()->use_fsyncdisk(); });
+  CMD_ANY_VALUE_V ("system.files.session.fdatasync.set",     [](auto, auto& value) { return session_thread::manager()->set_use_fsyncdisk(value); });
 
-  CMD2_ANY         ("system.files.opened_counter",     std::bind(&FM_t::files_opened_counter, fileManager));
-  CMD2_ANY         ("system.files.closed_counter",     std::bind(&FM_t::files_closed_counter, fileManager));
-  CMD2_ANY         ("system.files.failed_counter",     std::bind(&FM_t::files_failed_counter, fileManager));
+  CMD_ANY         ("system.files.opened_counter",     std::bind(&FM_t::files_opened_counter, fileManager));
+  CMD_ANY         ("system.files.closed_counter",     std::bind(&FM_t::files_closed_counter, fileManager));
+  CMD_ANY         ("system.files.failed_counter",     std::bind(&FM_t::files_failed_counter, fileManager));
 
-  CMD2_ANY_STRING  ("system.env",                      std::bind(&system_env, std::placeholders::_2));
+  CMD_ANY_STRING  ("system.env",                      [](auto, auto& str)   { return system_env(str); });
 
-  CMD2_ANY         ("system.time",                     []([[maybe_unused]] auto t, [[maybe_unused]] auto o) -> torrent::Object {
-      return torrent::this_thread::cached_seconds().count();
-    });
-  CMD2_ANY         ("system.time_seconds",             []([[maybe_unused]] auto t, [[maybe_unused]] auto o) -> torrent::Object {
-      return torrent::utils::cast_seconds(torrent::utils::time_since_epoch()).count();
-    });
-  CMD2_ANY         ("system.time_usec",                []([[maybe_unused]] auto t, [[maybe_unused]] auto o) -> torrent::Object {
-      return torrent::utils::time_since_epoch().count();
-    });
+  CMD_ANY         ("system.time",                     [](auto, auto)        { return torrent::this_thread::cached_seconds().count(); });
+  CMD_ANY         ("system.time_seconds",             [](auto, auto)        { return torrent::utils::cast_seconds(torrent::utils::time_since_epoch()).count(); });
+  CMD_ANY         ("system.time_usec",                [](auto, auto)        { return torrent::utils::time_since_epoch().count(); });
 
-  CMD2_ANY_VALUE_V ("system.umask.set",                std::bind(&umask, std::placeholders::_2));
+  CMD_ANY_VALUE_V ("system.umask.set",                [](auto, auto& value) { return ::umask(value); });
 
-  CMD2_VAR_BOOL    ("system.daemon",                   false);
+  CMD_VAR_BOOL    ("system.daemon",                   false);
 
-  CMD2_ANY_V       ("system.shutdown.normal",          std::bind(&Control::receive_normal_shutdown, control));
-  CMD2_ANY_V       ("system.shutdown.quick",           std::bind(&Control::receive_quick_shutdown, control));
-  CMD2_REDIRECT_NO_EXPORT("system.shutdown", "system.shutdown.normal");
+  CMD_ANY_V       ("system.shutdown.normal",          [](auto, auto)        { control->receive_normal_shutdown(); });
+  CMD_ANY_V       ("system.shutdown.quick",           [](auto, auto)        { control->receive_quick_shutdown(); });
 
-  CMD2_ANY         ("system.cwd",                      std::bind(&system_get_cwd));
-  CMD2_ANY_STRING  ("system.cwd.set",                  std::bind(&system_set_cwd, std::placeholders::_2));
+  CMD_REDIRECT_NO_EXPORT("system.shutdown", "system.shutdown.normal");
 
-  CMD2_ANY         ("pieces.sync.always_safe",         std::bind(&CM_t::safe_sync, chunkManager));
-  CMD2_ANY_VALUE_V ("pieces.sync.always_safe.set",     std::bind(&CM_t::set_safe_sync, chunkManager, std::placeholders::_2));
-  CMD2_ANY         ("pieces.sync.safe_free_diskspace", std::bind(&CM_t::safe_free_diskspace, chunkManager));
-  CMD2_ANY         ("pieces.sync.timeout",             std::bind(&CM_t::timeout_sync, chunkManager));
-  CMD2_ANY_VALUE_V ("pieces.sync.timeout.set",         std::bind(&CM_t::set_timeout_sync, chunkManager, std::placeholders::_2));
-  CMD2_ANY         ("pieces.sync.timeout_safe",        std::bind(&CM_t::timeout_safe_sync, chunkManager));
-  CMD2_ANY_VALUE_V ("pieces.sync.timeout_safe.set",    std::bind(&CM_t::set_timeout_safe_sync, chunkManager, std::placeholders::_2));
-  CMD2_ANY         ("pieces.sync.queue_size",          std::bind(&CM_t::sync_queue_size, chunkManager));
+  CMD_ANY         ("system.cwd",                      [](auto, auto)        { return system_get_cwd(); });
+  CMD_ANY_STRING  ("system.cwd.set",                  [](auto, auto& str)   { return system_set_cwd(str); });
 
-  CMD2_ANY         ("pieces.preload.type",             std::bind(&CM_t::preload_type, chunkManager));
-  CMD2_ANY_VALUE_V ("pieces.preload.type.set",         std::bind(&CM_t::set_preload_type, chunkManager, std::placeholders::_2));
-  CMD2_ANY         ("pieces.preload.min_size",         std::bind(&CM_t::preload_min_size, chunkManager));
-  CMD2_ANY_VALUE_V ("pieces.preload.min_size.set",     std::bind(&CM_t::set_preload_min_size, chunkManager, std::placeholders::_2));
-  CMD2_ANY         ("pieces.preload.min_rate",         std::bind(&CM_t::preload_required_rate, chunkManager));
-  CMD2_ANY_VALUE_V ("pieces.preload.min_rate.set",     std::bind(&CM_t::set_preload_required_rate, chunkManager, std::placeholders::_2));
+  CMD_ANY         ("system.sockets.size",             [](auto, auto)        { return torrent::runtime::socket_manager()->size(); });
+  CMD_ANY         ("system.sockets.max_size",         [](auto, auto)        { return torrent::runtime::socket_manager()->max_size(); });
+  CMD_ANY_VALUE_V ("system.sockets.max_size.set",     [](auto, auto& value) { return torrent::runtime::socket_manager()->set_max_size_and_adjust(value); });
+  CMD_ANY_V       ("system.sockets.adjust_alloc",     [](auto, auto)        { torrent::runtime::socket_manager()->adjust_allocation(); });
+  CMD_ANY         ("system.sockets.reserved_alloc",   [](auto, auto)        { return torrent::runtime::socket_manager()->reserved_allocation(); });
+  CMD_ANY         ("system.sockets.available_alloc",  [](auto, auto)        { return torrent::runtime::socket_manager()->available_allocation(); });
 
-  CMD2_ANY         ("pieces.memory.current",           std::bind(&CM_t::memory_usage, chunkManager));
-  CMD2_ANY         ("pieces.memory.sync_queue",        std::bind(&CM_t::sync_queue_memory_usage, chunkManager));
-  CMD2_ANY         ("pieces.memory.block_count",       std::bind(&CM_t::memory_block_count, chunkManager));
-  CMD2_ANY         ("pieces.memory.max",               std::bind(&CM_t::max_memory_usage, chunkManager));
-  CMD2_ANY_VALUE_V ("pieces.memory.max.set",           std::bind(&CM_t::set_max_memory_usage, chunkManager, std::placeholders::_2));
-  CMD2_ANY         ("pieces.stats_preloaded",          std::bind(&CM_t::stats_preloaded, chunkManager));
-  CMD2_ANY         ("pieces.stats_not_preloaded",      std::bind(&CM_t::stats_not_preloaded, chunkManager));
+  for (uint32_t i = 0; i < torrent::runtime::SocketManager::category_count; ++i) {
+    auto category      = static_cast<torrent::runtime::socket_manager_category_t>(i);
+    auto category_name = "system.sockets." + torrent::option_to_str_or_throw(torrent::OPTION_SOCKET_CATEGORY, i);
 
-  CMD2_ANY         ("pieces.stats.total_size",         std::bind(&apply_pieces_stats_total_size));
+    CMD_ANY        (category_name + ".size",      [category](auto, auto) { return torrent::runtime::socket_manager()->category_managed_size(category); });
+    CMD_ANY        (category_name + ".max_size",  [category](auto, auto) { return torrent::runtime::socket_manager()->category_max_size(category); });
 
-  CMD2_ANY         ("pieces.hash.queue_size",          std::bind(&torrent::main_thread::hash_queue_size));
-  CMD2_VAR_BOOL    ("pieces.hash.on_completion",       true);
+    if (i == 0) {
+      CMD_ANY      (category_name + ".min_alloc",   [](auto, auto) { return torrent::runtime::socket_manager()->generic_min_allocation(); });
+      continue;
+    }
 
-  CMD2_VAR_STRING  ("directory.default",               "./");
+    CMD_ANY        (category_name + ".min_alloc",     [category](auto, auto) { return torrent::runtime::socket_manager()->category_min_allocation(category); });
+    CMD_ANY        (category_name + ".max_alloc",     [category](auto, auto) { return torrent::runtime::socket_manager()->category_max_allocation(category); });
+    CMD_ANY_VALUE_V(category_name + ".min_alloc.set", [category](auto, auto& value) { torrent::runtime::socket_manager()->set_category_min_allocation(category, value); });
+    CMD_ANY_VALUE_V(category_name + ".max_alloc.set", [category](auto, auto& value) { torrent::runtime::socket_manager()->set_category_max_allocation(category, value); });
+  }
 
-  CMD2_VAR_STRING  ("session.name",                    "");
-  CMD2_ANY         ("session.path",                    [](auto, auto)        { return session_thread::manager()->path(); });
-  CMD2_ANY_STRING_V("session.path.set",                [](auto, auto& str)   { return session_thread::manager()->set_path(str); });
-  CMD2_ANY         ("session.use_lock",                [](auto, auto)        { return session_thread::manager()->use_lock(); });
-  CMD2_ANY_VALUE_V ("session.use_lock.set",            [](auto, auto& value) { return session_thread::manager()->set_use_lock(value); });
-  CMD2_VAR_BOOL    ("session.on_completion",           true);
+  CMD_ANY         ("pieces.sync.always_safe",         [](auto, auto)        { return torrent::runtime::memory_manager()->safe_sync(); });
+  CMD_ANY_VALUE_V ("pieces.sync.always_safe.set",     [](auto, auto& value) { return torrent::runtime::memory_manager()->set_safe_sync(value); });
+  CMD_ANY         ("pieces.sync.safe_free_diskspace", [](auto, auto)        { return torrent::runtime::memory_manager()->sync_safe_free_diskspace(); });
+  CMD_ANY         ("pieces.sync.timeout",             [](auto, auto)        { return torrent::runtime::memory_manager()->timeout_sync().count(); });
+  CMD_ANY_VALUE_V ("pieces.sync.timeout.set",         [](auto, auto& value) { return torrent::runtime::memory_manager()->set_timeout_sync(value); });
+  // CMD_ANY         ("pieces.sync.timeout_safe",        [](auto, auto)        { return torrent::runtime::memory_manager()->timeout_safe_sync(); });
+  // CMD_ANY_VALUE_V ("pieces.sync.timeout_safe.set",    [](auto, auto& value) { return torrent::runtime::memory_manager()->set_timeout_safe_sync(value); });
+  CMD_ANY         ("pieces.sync.timeout_safe",        [](auto, auto)        { return 0; });
+  CMD_ANY_VALUE_V ("pieces.sync.timeout_safe.set",    [](auto, auto)        { });
+  CMD_ANY         ("pieces.sync.queue_size",          [](auto, auto)        { return torrent::runtime::memory_manager()->sync_queue_block_count(); });
 
-  CMD2_ANY_V       ("session.save",                    [dList](auto, auto)   { return dList->session_save(); });
+  CMD_ANY         ("pieces.preload.type",             [](auto, auto)        { return torrent::runtime::memory_manager()->preload_type(); });
+  CMD_ANY_VALUE_V ("pieces.preload.type.set",         [](auto, auto& value) { return torrent::runtime::memory_manager()->set_preload_type(value); });
+  CMD_ANY         ("pieces.preload.min_size",         [](auto, auto)        { return torrent::runtime::memory_manager()->preload_min_size(); });
+  CMD_ANY_VALUE_V ("pieces.preload.min_size.set",     [](auto, auto& value) { return torrent::runtime::memory_manager()->set_preload_min_size(value); });
+  CMD_ANY         ("pieces.preload.min_rate",         [](auto, auto)        { return torrent::runtime::memory_manager()->preload_required_rate(); });
+  CMD_ANY_VALUE_V ("pieces.preload.min_rate.set",     [](auto, auto& value) { return torrent::runtime::memory_manager()->set_preload_required_rate(value); });
 
-  CMD2_ANY         ("magnet.path",                     [](auto, auto)        { return control->core()->magnet_path(); });
-  CMD2_ANY_STRING_V("magnet.path.set",                 [](auto, auto& str)   { return control->core()->set_magnet_path(str); });
+  CMD_ANY         ("pieces.stats_preloaded",          [](auto, auto)        { return torrent::runtime::memory_manager()->stats_preloaded(); });
+  CMD_ANY         ("pieces.stats_not_preloaded",      [](auto, auto)        { return torrent::runtime::memory_manager()->stats_not_preloaded(); });
+  CMD_ANY         ("pieces.stats.total_size",         std::bind(&apply_pieces_stats_total_size));
+
+  CMD_ANY         ("pieces.memory.current",           [](auto, auto)        { return torrent::runtime::memory_manager()->memory_usage(); });
+  CMD_ANY         ("pieces.memory.sync_queue",        [](auto, auto)        { return torrent::runtime::memory_manager()->sync_queue_memory_usage(); });
+  CMD_ANY         ("pieces.memory.block_count",       [](auto, auto)        { return torrent::runtime::memory_manager()->memory_block_count(); });
+  CMD_ANY         ("pieces.memory.max",               [](auto, auto)        { return torrent::runtime::memory_manager()->max_memory_usage(); });
+  CMD_ANY_VALUE_V ("pieces.memory.max.set",           [](auto, auto& value) { return torrent::runtime::memory_manager()->set_max_memory_usage(value); });
+
+  CMD_ANY         ("pieces.hash.queue_size",          std::bind(&torrent::main_thread::hash_queue_size));
+  CMD_VAR_BOOL    ("pieces.hash.on_completion",       true);
+
+  CMD_VAR_STRING  ("directory.default",               "./");
+
+  CMD_VAR_STRING  ("session.name",                    "");
+  CMD_ANY         ("session.path",                    [](auto, auto)        { return session_thread::manager()->path(); });
+  CMD_ANY_STRING_V("session.path.set",                [](auto, auto& str)   { return session_thread::manager()->set_path(str); });
+  CMD_ANY         ("session.use_lock",                [](auto, auto)        { return session_thread::manager()->use_lock(); });
+  CMD_ANY_VALUE_V ("session.use_lock.set",            [](auto, auto& value) { return session_thread::manager()->set_use_lock(value); });
+  CMD_VAR_BOOL    ("session.on_completion",           true);
+
+  CMD_ANY_V       ("session.save",                    [dList](auto, auto)   { return dList->session_save(); });
+
+  CMD_ANY         ("magnet.path",                     [](auto, auto)        { return control->core()->magnet_path(); });
+  CMD_ANY_STRING_V("magnet.path.set",                 [](auto, auto& str)   { return control->core()->set_magnet_path(str); });
 
 #ifdef HAVE_LUA
   rpc::LuaEngine* lua_engine = control->lua_engine();
 
-  CMD2_ANY         ("lua.execute",                    std::bind(&rpc::execute_lua, lua_engine, std::placeholders::_1, std::placeholders::_2, 0));
-  CMD2_ANY         ("lua.execute.str",                std::bind(&rpc::execute_lua, lua_engine, std::placeholders::_1, std::placeholders::_2, rpc::LuaEngine::flag_string));
+  CMD_ANY         ("lua.execute",                    std::bind(&rpc::execute_lua, lua_engine, std::placeholders::_1, std::placeholders::_2, 0));
+  CMD_ANY         ("lua.execute.str",                std::bind(&rpc::execute_lua, lua_engine, std::placeholders::_1, std::placeholders::_2, rpc::LuaEngine::flag_string));
 #endif
 
-#define CMD2_EXECUTE(key, flags)                                        \
-  CMD2_ANY(key, std::bind(&rpc::ExecFile::execute_object, &rpc::execFile, std::placeholders::_2, flags));
+#define CMD_EXECUTE(key, flags)                                        \
+  CMD_ANY(key, std::bind(&rpc::ExecFile::execute_object, &rpc::execFile, std::placeholders::_2, flags));
 
-  CMD2_EXECUTE     ("execute",                rpc::ExecFile::flag_expand_tilde | rpc::ExecFile::flag_throw);
-  CMD2_EXECUTE     ("execute2",                rpc::ExecFile::flag_expand_tilde | rpc::ExecFile::flag_throw);
-  CMD2_EXECUTE     ("execute.throw",           rpc::ExecFile::flag_expand_tilde | rpc::ExecFile::flag_throw);
-  CMD2_EXECUTE     ("execute.throw.bg",        rpc::ExecFile::flag_expand_tilde | rpc::ExecFile::flag_throw | rpc::ExecFile::flag_background);
-  CMD2_EXECUTE     ("execute.nothrow",         rpc::ExecFile::flag_expand_tilde);
-  CMD2_EXECUTE     ("execute.nothrow.bg",      rpc::ExecFile::flag_expand_tilde | rpc::ExecFile::flag_background);
-  CMD2_EXECUTE     ("execute.raw",             rpc::ExecFile::flag_throw);
-  CMD2_EXECUTE     ("execute.raw.bg",          rpc::ExecFile::flag_throw | rpc::ExecFile::flag_background);
-  CMD2_EXECUTE     ("execute.raw_nothrow",     0);
-  CMD2_EXECUTE     ("execute.raw_nothrow.bg",  rpc::ExecFile::flag_background);
-  CMD2_EXECUTE     ("execute.capture",         rpc::ExecFile::flag_throw | rpc::ExecFile::flag_expand_tilde | rpc::ExecFile::flag_capture);
-  CMD2_EXECUTE     ("execute.capture_nothrow", rpc::ExecFile::flag_expand_tilde | rpc::ExecFile::flag_capture);
-
-  CMD2_ANY_LIST    ("file.append",    std::bind(&cmd_file_append, std::placeholders::_2));
+  CMD_EXECUTE     ("execute",                 rpc::ExecFile::flag_expand_tilde | rpc::ExecFile::flag_throw);
+  CMD_EXECUTE     ("execute.throw",           rpc::ExecFile::flag_expand_tilde | rpc::ExecFile::flag_throw);
+  CMD_EXECUTE     ("execute.throw.bg",        rpc::ExecFile::flag_expand_tilde | rpc::ExecFile::flag_throw | rpc::ExecFile::flag_background);
+  CMD_EXECUTE     ("execute.nothrow",         rpc::ExecFile::flag_expand_tilde);
+  CMD_EXECUTE     ("execute.nothrow.bg",      rpc::ExecFile::flag_expand_tilde | rpc::ExecFile::flag_background);
+  CMD_EXECUTE     ("execute.raw",             rpc::ExecFile::flag_throw);
+  CMD_EXECUTE     ("execute.raw.bg",          rpc::ExecFile::flag_throw | rpc::ExecFile::flag_background);
+  CMD_EXECUTE     ("execute.raw_nothrow",     0);
+  CMD_EXECUTE     ("execute.raw_nothrow.bg",  rpc::ExecFile::flag_background);
+  CMD_EXECUTE     ("execute.capture",         rpc::ExecFile::flag_throw | rpc::ExecFile::flag_expand_tilde | rpc::ExecFile::flag_capture);
+  CMD_EXECUTE     ("execute.capture_nothrow", rpc::ExecFile::flag_expand_tilde | rpc::ExecFile::flag_capture);
 
   // TODO: Convert to new command types:
   *rpc::command_base::argument(0) = "placeholder.0";
   *rpc::command_base::argument(1) = "placeholder.1";
   *rpc::command_base::argument(2) = "placeholder.2";
   *rpc::command_base::argument(3) = "placeholder.3";
-  CMD2_ANY_P("argument.0", std::bind(&rpc::command_base::argument_ref, 0));
-  CMD2_ANY_P("argument.1", std::bind(&rpc::command_base::argument_ref, 1));
-  CMD2_ANY_P("argument.2", std::bind(&rpc::command_base::argument_ref, 2));
-  CMD2_ANY_P("argument.3", std::bind(&rpc::command_base::argument_ref, 3));
+  CMD_ANY_P("argument.0", std::bind(&rpc::command_base::argument_ref, 0));
+  CMD_ANY_P("argument.1", std::bind(&rpc::command_base::argument_ref, 1));
+  CMD_ANY_P("argument.2", std::bind(&rpc::command_base::argument_ref, 2));
+  CMD_ANY_P("argument.3", std::bind(&rpc::command_base::argument_ref, 3));
 
-  CMD2_ANY_LIST  ("group.insert", std::bind(&group_insert, std::placeholders::_2));
+  CMD_ANY_LIST  ("group.insert", std::bind(&group_insert, std::placeholders::_2));
 
   rpc::rpc.mark_safe("system.api_version");
   rpc::rpc.mark_safe("system.client_version");
@@ -344,6 +350,26 @@ initialize_command_local() {
   rpc::rpc.mark_safe("system.file.split_size");
   rpc::rpc.mark_safe("system.file.split_suffix");
 
+  rpc::rpc.mark_safe("system.sockets.size");
+  rpc::rpc.mark_safe("system.sockets.max_size");
+  rpc::rpc.mark_safe("system.sockets.reserved_alloc");
+  rpc::rpc.mark_safe("system.sockets.available_alloc");
+
+  for (uint32_t i = 0; i < torrent::runtime::SocketManager::category_count; ++i) {
+    auto category_name = "system.sockets." + torrent::option_to_str_or_throw(torrent::OPTION_SOCKET_CATEGORY, i);
+
+    rpc::rpc.mark_safe(category_name + ".size");
+    rpc::rpc.mark_safe(category_name + ".max_size");
+
+    if (i == 0) {
+      rpc::rpc.mark_safe(category_name + ".min_alloc");
+      continue;
+    }
+
+    rpc::rpc.mark_safe(category_name + ".min_alloc");
+    rpc::rpc.mark_safe(category_name + ".max_alloc");
+  }
+
   rpc::rpc.mark_safe("directory.default");
   rpc::rpc.mark_safe("session.path");
   rpc::rpc.mark_safe("session.use_lock");

src/command_logging.cc

@@ -1,6 +1,7 @@
 #include "config.h"
 
 #include <fcntl.h>
+#include <iterator>
 #include <stdio.h>
 #include <unistd.h>
 #include <torrent/data/chunk_utils.h>
@@ -15,6 +16,7 @@
 #include "core/download.h"
 #include "core/download_list.h"
 #include "core/manager.h"
+#include "rpc/parse.h"
 #include "rpc/parse_commands.h"
 
 torrent::Object
@@ -38,6 +40,32 @@ apply_log_add_output(const torrent::Object::list_type& args) {
   return torrent::Object();
 }
 
+torrent::Object
+apply_log_print(const torrent::Object::list_type& args) {
+  if (args.size() < 2)
+    throw torrent::input_error("Invalid number of arguments.");
+
+  torrent::Object::value_type group;
+
+  if (args.front().is_value())
+    group = args.front().as_value();
+  else if (args.front().is_string())
+    group = torrent::option_find_string_str(torrent::OPTION_LOG_GROUP, args.front().as_string());
+  else
+    throw torrent::input_error("Invalid log group.");
+
+  if (group < 0 || group >= torrent::LOG_GROUP_MAX_SIZE)
+    throw torrent::input_error("Invalid log group.");
+
+  std::string message;
+
+  for (auto itr = std::next(args.begin()); itr != args.end(); ++itr)
+    rpc::print_object_std(&message, &*itr, 0);
+
+  torrent::log_groups[group].internal_print(message);
+  return torrent::Object();
+}
+
 // TODO: Deprecated.
 torrent::Object
 apply_log(const torrent::Object::string_type& arg, int logType) {
@@ -112,6 +140,7 @@ initialize_command_logging() {
   CMD2_ANY_STRING_V("log.close",            std::bind(&torrent::log_close_output_str, std::placeholders::_2));
 
   CMD2_ANY_LIST    ("log.add_output",       std::bind(&apply_log_add_output, std::placeholders::_2));
+  CMD2_ANY_LIST    ("log.print",            std::bind(&apply_log_print, std::placeholders::_2));
 
   CMD2_ANY_STRING  ("log.execute",          std::bind(&apply_log, std::placeholders::_2, 0));
   CMD2_ANY_STRING  ("log.vmmap.dump",       std::bind(&log_vmmap_dump, std::placeholders::_2));

src/command_network.cc

@@ -9,7 +9,10 @@
 #include <torrent/download/resource_manager.h>
 #include <torrent/net/http_stack.h>
 #include <torrent/net/socket_address.h>
+#include <torrent/runtime/client_config.h>
 #include <torrent/runtime/network_config.h>
+#include <torrent/runtime/network_manager.h>
+#include <torrent/runtime/proxy_manager.h>
 #include <torrent/runtime/runtime.h>
 #include <torrent/runtime/socket_manager.h>
 #include <torrent/tracker/tracker.h>
@@ -32,21 +35,115 @@
 #endif
 
 torrent::Object
-apply_encryption(const torrent::Object::list_type& args) {
-  uint32_t options_mask = torrent::runtime::NetworkConfig::encryption_none;
+listen_port_range() {
+  auto port_range = torrent::runtime::client_config()->listen_port_range();
 
-  for (const auto& arg : args) {
-    uint32_t opt = torrent::option_find_string(torrent::OPTION_ENCRYPTION, arg.as_string().c_str());
+  return std::to_string(port_range.first) + "-" + std::to_string(port_range.second);
+}
 
-    if (opt == torrent::runtime::NetworkConfig::encryption_none)
-      options_mask = torrent::runtime::NetworkConfig::encryption_none;
-    else
-      options_mask |= opt;
+void
+set_listen_port_range(const std::string& arg) {
+  unsigned int port_first{}, port_last{};
+
+  if (std::sscanf(arg.c_str(), "%i-%i", &port_first, &port_last) != 2)
+    throw torrent::input_error("Invalid port_range argument.");
+
+  if (port_first >= (1 << 16) || port_last >= (1 << 16))
+    throw torrent::input_error("Port range out-of-bounds.");
+
+  torrent::runtime::client_config()->set_listen_port_range(port_first, port_last);
+}
+
+torrent::Object
+get_encryption() {
+  auto encryption_modes = torrent::runtime::network_config()->encryption_modes();
+
+  return torrent::option_to_str_or_throw(torrent::OPTION_ENCRYPTION_HANDSHAKE, encryption_modes.first) + "," +
+    torrent::option_to_str_or_throw(torrent::OPTION_ENCRYPTION_STREAM, encryption_modes.second);
+}
+
+torrent::Object
+get_handshake_encryption() {
+  auto encryption_modes = torrent::runtime::network_config()->encryption_modes();
+
+  return torrent::option_to_str_or_throw(torrent::OPTION_ENCRYPTION_MODE, encryption_modes.first);
+}
+
+torrent::Object
+get_stream_encryption() {
+  auto encryption_modes = torrent::runtime::network_config()->encryption_modes();
+
+  return torrent::option_to_str_or_throw(torrent::OPTION_ENCRYPTION_MODE, encryption_modes.second);
+}
+
+torrent::Object
+apply_obsolete_encryption(const torrent::Object::list_type& args) {
+  torrent::encryption_mode handshake_mode{torrent::ENCRYPTION_MODE_ALLOW};
+  torrent::encryption_mode stream_mode{torrent::ENCRYPTION_MODE_ALLOW};
+
+  for (auto& itr : args) {
+    auto arg = itr.as_string();
+
+    if (arg == "none") {
+      handshake_mode = torrent::ENCRYPTION_MODE_DENY;
+      stream_mode    = torrent::ENCRYPTION_MODE_DENY;
+      break;
+
+    } else if (arg == "allow_incoming") {
+    } else if (arg == "try_outgoing") {
+    } else if (arg == "require") {
+      handshake_mode = torrent::ENCRYPTION_MODE_REQUIRE;
+
+    } else if (arg == "require_RC4" || arg == "require_rc4") {
+      handshake_mode = torrent::ENCRYPTION_MODE_REQUIRE;
+      stream_mode    = torrent::ENCRYPTION_MODE_REQUIRE;
+      break;
+
+    } else if (arg == "enable_retry") {
+    } else if (arg == "prefer_plaintext") {
+    } else {
+      throw torrent::input_error("Invalid encryption option: '" + arg + "'");
+    }
   }
 
-  torrent::runtime::network_config()->set_encryption_options(options_mask);
+  lt_log_print(torrent::LOG_WARN, "Obsolete encryption options used, use 'handshake_{deny,allow,prefer,require}, stream_{deny,allow,prefer,require}' instead.");
 
-  return torrent::Object();
+  torrent::runtime::network_config()->set_encryption_modes(handshake_mode, stream_mode);
+  return {};
+}
+
+torrent::Object
+apply_encryption(const torrent::Object::list_type& args) {
+  if (args.empty())
+    throw torrent::input_error("No encryption options specified.");
+
+  torrent::encryption_mode encryption_mode, handshake_mode, stream_mode;
+
+  if (args.size() == 1) {
+    try {
+      encryption_mode = static_cast<torrent::encryption_mode>(torrent::option_find_string_str(torrent::OPTION_ENCRYPTION_MODE, args.front().as_string()));
+
+    } catch (torrent::input_error& e) {
+      return apply_obsolete_encryption(args);
+    }
+
+    torrent::runtime::network_config()->set_encryption_modes(encryption_mode, encryption_mode);
+    return {};
+  }
+
+  if (args.size() != 2)
+    return apply_obsolete_encryption(args);
+
+  try {
+    handshake_mode = static_cast<torrent::encryption_mode>(torrent::option_find_string_str(torrent::OPTION_ENCRYPTION_HANDSHAKE, args.front().as_string()));
+    stream_mode    = static_cast<torrent::encryption_mode>(torrent::option_find_string_str(torrent::OPTION_ENCRYPTION_STREAM, args.back().as_string()));
+
+  } catch (torrent::input_error& e) {
+    return apply_obsolete_encryption(args);
+  }
+
+  torrent::runtime::network_config()->set_encryption_modes(handshake_mode, stream_mode);
+  return {};
 }
 
 torrent::Object
@@ -61,8 +158,6 @@ apply_tos(const torrent::Object::string_type& arg) {
   return torrent::Object();
 }
 
-torrent::Object apply_encoding_list(const std::string& arg) { torrent::encoding_list()->push_back(arg); return torrent::Object(); }
-
 void
 initialize_rpc_handlers() {
   rpc::rpc.initialize_handlers();
@@ -221,106 +316,107 @@ initialize_command_network() {
   auto http_stack     = torrent::net_thread::http_stack();
   auto nw_config      = torrent::runtime::network_config();
 
-  CMD2_ANY_STRING  ("encoding.add", std::bind(&apply_encoding_list, std::placeholders::_2));
+  CMD_ANY         ("network.listen.port",            [](auto, auto)        { return torrent::runtime::network_manager()->listen_port(); });
+  CMD_ANY_VALUE_V ("network.listen.port.set",        [](auto, auto& value) { return torrent::runtime::network_manager()->set_listen_port(value); });
+  CMD_ANY         ("network.listen.port.random",     [](auto, auto)        { return torrent::runtime::client_config()->listen_port_random(); });
+  CMD_ANY_VALUE_V ("network.listen.port.random.set", [](auto, auto& value) { return torrent::runtime::client_config()->set_listen_port_random(value); });
+  CMD_ANY         ("network.listen.port.range",      [](auto, auto)        { return listen_port_range(); });
+  CMD_ANY_STRING_V("network.listen.port.range.set",  [](auto, auto& value) { return set_listen_port_range(value); });
+  CMD_ANY         ("network.listen.backlog",         [](auto, auto)        { return torrent::runtime::network_config()->listen_backlog(); });
+  CMD_ANY_VALUE_V ("network.listen.backlog.set",     [](auto, auto& value) { return torrent::runtime::network_config()->set_listen_backlog(value); });
 
-  // Isn't port_open used?
-  CMD2_VAR_BOOL    ("network.port_open",   true);
-  CMD2_VAR_BOOL    ("network.port_random", true);
-  CMD2_VAR_STRING  ("network.port_range",  "6881-6999");
+  CMD_ANY         ("protocol.pex",                   [](auto, auto)        { return torrent::runtime::client_config()->is_pex_enabled(); });
+  CMD_ANY_VALUE_V ("protocol.pex.set",               [](auto, auto& value) { return torrent::runtime::client_config()->set_pex_enabled(value); });
 
-  CMD2_ANY         ("network.listen.port",        [](auto, auto)                 { return torrent::runtime::listen_port(); });
-  CMD2_ANY         ("network.listen.backlog",     [nw_config](auto, auto)        { return nw_config->listen_backlog(); });
-  CMD2_ANY_VALUE_V ("network.listen.backlog.set", [nw_config](auto, auto& value) { return nw_config->set_listen_backlog(value); });
+  CMD_ANY_LIST    ("protocol.encryption",            [](auto, auto)        { return get_encryption(); });
+  CMD_ANY_LIST    ("protocol.encryption.set",        [](auto, auto& args)  { return apply_encryption(args); });
+  CMD_ANY_LIST    ("protocol.encryption.handshake",  [](auto, auto)        { return get_handshake_encryption(); });
+  CMD_ANY_LIST    ("protocol.encryption.stream",     [](auto, auto)        { return get_stream_encryption(); });
 
-  CMD2_VAR_BOOL    ("protocol.pex",               true);
-  CMD2_ANY_LIST    ("protocol.encryption.set",    [](auto, auto& args)           { return apply_encryption(args); });
+  CMD_VAR_STRING  ("protocol.connection.leech",            "leech");
+  CMD_VAR_STRING  ("protocol.connection.seed",             "seed");
 
-  CMD2_VAR_STRING  ("protocol.connection.leech",            "leech");
-  CMD2_VAR_STRING  ("protocol.connection.seed",             "seed");
+  CMD_VAR_STRING  ("protocol.choke_heuristics.up.leech",   "upload_leech");
+  CMD_VAR_STRING  ("protocol.choke_heuristics.up.seed",    "upload_leech");
+  CMD_VAR_STRING  ("protocol.choke_heuristics.down.leech", "download_leech");
+  CMD_VAR_STRING  ("protocol.choke_heuristics.down.seed",  "download_leech");
 
-  CMD2_VAR_STRING  ("protocol.choke_heuristics.up.leech",   "upload_leech");
-  CMD2_VAR_STRING  ("protocol.choke_heuristics.up.seed",    "upload_leech");
-  CMD2_VAR_STRING  ("protocol.choke_heuristics.down.leech", "download_leech");
-  CMD2_VAR_STRING  ("protocol.choke_heuristics.down.seed",  "download_leech");
+  CMD_ANY         ("network.http.cacert",                    [http_stack](auto, auto)        { return http_stack->http_cacert(); });
+  CMD_ANY_STRING_V("network.http.cacert.set",                [http_stack](auto, auto& str)   { return http_stack->set_http_cacert(str); });
+  CMD_ANY         ("network.http.capath",                    [http_stack](auto, auto)        { return http_stack->http_capath(); });
+  CMD_ANY_STRING_V("network.http.capath.set",                [http_stack](auto, auto& str)   { return http_stack->set_http_capath(str); });
+  CMD_ANY         ("network.http.dns_cache_timeout",         [http_stack](auto, auto)        { return http_stack->dns_timeout(); });
+  CMD_ANY_VALUE_V ("network.http.dns_cache_timeout.set",     [http_stack](auto, auto& value) { return http_stack->set_dns_timeout(value); });
+  CMD_ANY         ("network.http.current_open",              [http_stack](auto, auto)        { return http_stack->size(); });
+  CMD_ANY         ("network.http.max_cache_connections",     [http_stack](auto, auto)        { return http_stack->max_cache_connections(); });
+  CMD_ANY_VALUE_V ("network.http.max_cache_connections.set", [http_stack](auto, auto& value) { return http_stack->set_max_cache_connections(value); });
+  CMD_ANY         ("network.http.max_host_connections",      [http_stack](auto, auto)        { return http_stack->max_host_connections(); });
+  CMD_ANY_VALUE_V ("network.http.max_host_connections.set",  [http_stack](auto, auto& value) { return http_stack->set_max_host_connections(value); });
+  CMD_ANY         ("network.http.max_total_connections",     [http_stack](auto, auto)        { return http_stack->max_total_connections(); });
 
-  CMD2_ANY         ("network.http.cacert",                    [http_stack](auto, auto)        { return http_stack->http_cacert(); });
-  CMD2_ANY_STRING_V("network.http.cacert.set",                [http_stack](auto, auto& str)   { return http_stack->set_http_cacert(str); });
-  CMD2_ANY         ("network.http.capath",                    [http_stack](auto, auto)        { return http_stack->http_capath(); });
-  CMD2_ANY_STRING_V("network.http.capath.set",                [http_stack](auto, auto& str)   { return http_stack->set_http_capath(str); });
-  CMD2_ANY         ("network.http.dns_cache_timeout",         [http_stack](auto, auto)        { return http_stack->dns_timeout(); });
-  CMD2_ANY_VALUE_V ("network.http.dns_cache_timeout.set",     [http_stack](auto, auto& value) { return http_stack->set_dns_timeout(value); });
-  CMD2_ANY         ("network.http.current_open",              [http_stack](auto, auto)        { return http_stack->size(); });
-  CMD2_ANY         ("network.http.max_cache_connections",     [http_stack](auto, auto)        { return http_stack->max_cache_connections(); });
-  CMD2_ANY_VALUE_V ("network.http.max_cache_connections.set", [http_stack](auto, auto& value) { return http_stack->set_max_cache_connections(value); });
-  CMD2_ANY         ("network.http.max_host_connections",      [http_stack](auto, auto)        { return http_stack->max_host_connections(); });
-  CMD2_ANY_VALUE_V ("network.http.max_host_connections.set",  [http_stack](auto, auto& value) { return http_stack->set_max_host_connections(value); });
-  CMD2_ANY         ("network.http.max_total_connections",     [http_stack](auto, auto)        { return http_stack->max_total_connections(); });
-  CMD2_ANY_VALUE_V ("network.http.max_total_connections.set", [http_stack](auto, auto& value) { return http_stack->set_max_total_connections(value); });
-  CMD2_ANY         ("network.http.proxy_address",             [http_stack](auto, auto)        { return http_stack->http_proxy(); });
-  CMD2_ANY_STRING_V("network.http.proxy_address.set",         [http_stack](auto, auto& str)   { return http_stack->set_http_proxy(str); });
-  CMD2_ANY         ("network.http.ssl_verify_host",           [http_stack](auto, auto)        { return http_stack->ssl_verify_host(); });
-  CMD2_ANY_VALUE_V ("network.http.ssl_verify_host.set",       [http_stack](auto, auto& value) { return http_stack->set_ssl_verify_host(value); });
-  CMD2_ANY         ("network.http.ssl_verify_peer",           [http_stack](auto, auto)        { return http_stack->ssl_verify_peer(); });
-  CMD2_ANY_VALUE_V ("network.http.ssl_verify_peer.set",       [http_stack](auto, auto& value) { return http_stack->set_ssl_verify_peer(value); });
+  CMD_ANY         ("network.http.ssl_verify_host",           [http_stack](auto, auto)        { return http_stack->ssl_verify_host(); });
+  CMD_ANY_VALUE_V ("network.http.ssl_verify_host.set",       [http_stack](auto, auto& value) { return http_stack->set_ssl_verify_host(value); });
+  CMD_ANY         ("network.http.ssl_verify_peer",           [http_stack](auto, auto)        { return http_stack->ssl_verify_peer(); });
+  CMD_ANY_VALUE_V ("network.http.ssl_verify_peer.set",       [http_stack](auto, auto& value) { return http_stack->set_ssl_verify_peer(value); });
 
-  CMD2_ANY         ("network.send_buffer.size",           [nw_config](auto, auto)        { return nw_config->send_buffer_size(); });
-  CMD2_ANY_VALUE_V ("network.send_buffer.size.set",       [nw_config](auto, auto& value) { return nw_config->set_send_buffer_size(value); });
-  CMD2_ANY         ("network.receive_buffer.size",        [nw_config](auto, auto)        { return nw_config->receive_buffer_size(); });
-  CMD2_ANY_VALUE_V ("network.receive_buffer.size.set",    [nw_config](auto, auto& value) { return nw_config->set_receive_buffer_size(value); });
-  CMD2_ANY_STRING  ("network.tos.set",                    [](auto, auto& str)                 { return apply_tos(str); });
+  CMD_ANY         ("network.send_buffer.size",               [nw_config](auto, auto)         { return nw_config->send_buffer_size(); });
+  CMD_ANY_VALUE_V ("network.send_buffer.size.set",           [nw_config](auto, auto& value)  { return nw_config->set_send_buffer_size(value); });
+  CMD_ANY         ("network.receive_buffer.size",            [nw_config](auto, auto)         { return nw_config->receive_buffer_size(); });
+  CMD_ANY_VALUE_V ("network.receive_buffer.size.set",        [nw_config](auto, auto& value)  { return nw_config->set_receive_buffer_size(value); });
+  CMD_ANY_STRING  ("network.tos.set",                        [](auto, auto& str)             { return apply_tos(str); });
 
-  CMD2_ANY         ("network.bind_address",               [nw_config](auto, auto)        { return nw_config->bind_address_best_match_str(); });
-  CMD2_ANY_STRING_V("network.bind_address.set",           [nw_config](auto, auto& str)   { return nw_config->set_bind_address_str(str); });
-  CMD2_ANY         ("network.bind_address.ipv4",          [nw_config](auto, auto)        { return nw_config->bind_inet_address_str(); });
-  CMD2_ANY_STRING_V("network.bind_address.ipv4.set",      [nw_config](auto, auto& str)   { return nw_config->set_bind_inet_address_str(str); });
-  CMD2_ANY         ("network.bind_address.ipv6",          [nw_config](auto, auto)        { return nw_config->bind_inet6_address_str(); });
-  CMD2_ANY_STRING_V("network.bind_address.ipv6.set",      [nw_config](auto, auto& str)   { return nw_config->set_bind_inet6_address_str(str); });
+  CMD_ANY         ("network.bind_address",                   [nw_config](auto, auto)         { return nw_config->bind_address_best_match_str(); });
+  CMD_ANY_STRING_V("network.bind_address.set",               [nw_config](auto, auto& str)    { return nw_config->set_bind_address_str(str); });
+  CMD_ANY         ("network.bind_address.ipv4",              [nw_config](auto, auto)         { return nw_config->bind_inet_address_str(); });
+  CMD_ANY_STRING_V("network.bind_address.ipv4.set",          [nw_config](auto, auto& str)    { return nw_config->set_bind_inet_address_str(str); });
+  CMD_ANY         ("network.bind_address.ipv6",              [nw_config](auto, auto)         { return nw_config->bind_inet6_address_str(); });
+  CMD_ANY_STRING_V("network.bind_address.ipv6.set",          [nw_config](auto, auto& str)    { return nw_config->set_bind_inet6_address_str(str); });
 
-  CMD2_ANY         ("network.local_address",              [nw_config](auto, auto)        { return nw_config->local_address_best_match_str(); });
-  CMD2_ANY_STRING_V("network.local_address.set",          [nw_config](auto, auto& str)   { return nw_config->set_local_address_str(str); });
-  CMD2_ANY         ("network.local_address.ipv4",         [nw_config](auto, auto)        { return nw_config->local_inet_address_str(); });
-  CMD2_ANY_STRING_V("network.local_address.ipv4.set",     [nw_config](auto, auto& str)   { return nw_config->set_local_inet_address_str(str); });
-  CMD2_ANY         ("network.local_address.ipv6",         [nw_config](auto, auto)        { return nw_config->local_inet6_address_str(); });
-  CMD2_ANY_STRING_V("network.local_address.ipv6.set",     [nw_config](auto, auto& str)   { return nw_config->set_local_inet6_address_str(str); });
+  CMD_ANY         ("network.local_address",                  [nw_config](auto, auto)         { return nw_config->local_address_best_match_str(); });
+  CMD_ANY_STRING_V("network.local_address.set",              [nw_config](auto, auto& str)    { return nw_config->set_local_address_str(str); });
+  CMD_ANY         ("network.local_address.ipv4",             [nw_config](auto, auto)         { return nw_config->local_inet_address_str(); });
+  CMD_ANY_STRING_V("network.local_address.ipv4.set",         [nw_config](auto, auto& str)    { return nw_config->set_local_inet_address_str(str); });
+  CMD_ANY         ("network.local_address.ipv6",             [nw_config](auto, auto)         { return nw_config->local_inet6_address_str(); });
+  CMD_ANY_STRING_V("network.local_address.ipv6.set",         [nw_config](auto, auto& str)    { return nw_config->set_local_inet6_address_str(str); });
 
-  CMD2_ANY         ("network.proxy_address",         [nw_config](auto, auto)           { return nw_config->proxy_address_str(); });
-  CMD2_ANY_STRING_V("network.proxy_address.set",     [](auto, auto& str)               { return control->core()->set_proxy_address(str); });
+  CMD_ANY         ("network.proxy.global",                   [](auto, auto)                  { return torrent::runtime::proxy_manager()->proxy_url(); });
+  CMD_ANY_STRING_V("network.proxy.global.set",               [](auto, auto& str)             { return torrent::runtime::proxy_manager()->set_proxy_url(str); });
+  CMD_ANY         ("network.proxy.http",                     [](auto, auto)                  { return torrent::runtime::proxy_manager()->http_proxy_url(); });
+  CMD_ANY_STRING_V("network.proxy.http.set",                 [](auto, auto& str)             { return torrent::runtime::proxy_manager()->set_http_proxy_url(str); });
 
-  CMD2_ANY         ("network.open_files",            [file_manager](auto, auto)        { return file_manager->open_files(); });
-  CMD2_ANY         ("network.max_open_files",        [file_manager](auto, auto)        { return file_manager->max_open_files(); });
-  CMD2_ANY_VALUE_V ("network.max_open_files.set",    [file_manager](auto, auto& value) { return file_manager->set_max_open_files(value); });
-  CMD2_ANY         ("network.total_handshakes",      [](auto, auto)                    { return torrent::runtime::total_handshakes(); });
-  CMD2_ANY         ("network.open_sockets",          [](auto, auto)                    { return torrent::runtime::socket_manager()->size(); });
-  CMD2_ANY         ("network.max_open_sockets",      [](auto, auto)                    { return torrent::runtime::socket_manager()->max_size(); });
-  CMD2_ANY_VALUE_V ("network.max_open_sockets.set",  [](auto, auto& value)             { return torrent::runtime::socket_manager()->set_max_size(value); });
+  CMD_ANY         ("network.open_files",                     [file_manager](auto, auto)      { return file_manager->open_files(); });
+  CMD_ANY         ("network.max_open_files",                 [file_manager](auto, auto)      { return file_manager->max_open_files(); });
+  CMD_ANY         ("network.total_handshakes",               [](auto, auto)                  { return torrent::runtime::total_handshakes(); });
 
-  CMD2_ANY_STRING  ("network.scgi.open_port",        std::bind(&apply_scgi, std::placeholders::_2, 1));
-  CMD2_ANY_STRING  ("network.scgi.open_local",       std::bind(&apply_scgi, std::placeholders::_2, 2));
-  CMD2_VAR_BOOL    ("network.scgi.dont_route",       false);
-  CMD2_ANY         ("network.scgi.open_systemd",     [](auto, auto) { return apply_scgi_systemd(); });
+  CMD_ANY_STRING  ("network.scgi.open_port",                 [](auto, auto& arg)             { return apply_scgi(arg, 1); });
+  CMD_ANY_STRING  ("network.scgi.open_local",                [](auto, auto& arg)             { return apply_scgi(arg, 2); });
+  CMD_VAR_BOOL    ("network.scgi.dont_route",                false);
+  CMD_ANY         ("network.scgi.open_systemd",              [](auto, auto)                  { return apply_scgi_systemd(); });
 
-  CMD2_ANY         ("network.scgi.use_gzip",          [](const auto&, const auto&)     { return rpc::rpc.scgi_allow_compression(); });
-  CMD2_ANY_VALUE_V ("network.scgi.use_gzip.set",      [](const auto&, const auto& arg) { return rpc::rpc.set_scgi_allow_compression(arg); });
-  CMD2_ANY         ("network.scgi.gzip.min_size",     [](const auto&, const auto&)     { return rpc::rpc.scgi_min_compress_size(); });
-  CMD2_ANY_VALUE_V ("network.scgi.gzip.min_size.set", [](const auto&, const auto& arg) { return rpc::rpc.set_scgi_min_compress_size(arg); });
+  CMD_ANY         ("network.scgi.use_gzip",                  [](auto, auto)                  { return rpc::rpc.scgi_allow_compression(); });
+  CMD_ANY_VALUE_V ("network.scgi.use_gzip.set",              [](auto, auto& arg)             { return rpc::rpc.set_scgi_allow_compression(arg); });
+  CMD_ANY         ("network.scgi.gzip.min_size",             [](auto, auto)                  { return rpc::rpc.scgi_min_compress_size(); });
+  CMD_ANY_VALUE_V ("network.scgi.gzip.min_size.set",         [](auto, auto& arg)             { return rpc::rpc.set_scgi_min_compress_size(arg); });
 
-  CMD2_ANY_STRING  ("network.xmlrpc.dialect.set",     [](const auto&, const auto& arg) { return apply_xmlrpc_dialect(arg); })
-  CMD2_ANY         ("network.xmlrpc.size_limit",      [](const auto&, const auto&)     { return rpc::rpc.size_limit(); });
-  CMD2_ANY_VALUE_V ("network.xmlrpc.size_limit.set",  [](const auto&, const auto& arg) { return rpc::rpc.set_size_limit(arg); });
+  CMD_ANY_STRING  ("network.xmlrpc.dialect.set",             [](auto, auto& arg)             { return apply_xmlrpc_dialect(arg); })
+  CMD_ANY         ("network.xmlrpc.size_limit",              [](auto, auto)                  { return rpc::rpc.size_limit(); });
+  CMD_ANY_VALUE_V ("network.xmlrpc.size_limit.set",          [](auto, auto& arg)             { return rpc::rpc.set_size_limit(arg); });
 
-  CMD2_VAR_BOOL    ("network.rpc.use_xmlrpc",        true);
-  CMD2_VAR_BOOL    ("network.rpc.use_jsonrpc",       true);
+  CMD_ANY         ("network.rpc.use_xmlrpc",                 [](auto, auto)                  { return rpc::rpc.use_xmlrpc(); });
+  CMD_ANY_VALUE_V ("network.rpc.use_xmlrpc.set",             [](auto, auto& arg)             { return rpc::rpc.set_use_xmlrpc(arg); });
+  CMD_ANY         ("network.rpc.use_jsonrpc",                [](auto, auto)                  { return rpc::rpc.use_jsonrpc(); });
+  CMD_ANY_VALUE_V ("network.rpc.use_jsonrpc.set",            [](auto, auto& arg)             { return rpc::rpc.set_use_jsonrpc(arg); });
 
-  CMD2_ANY         ("network.block.ipv4",            [nw_config](auto, auto)        { return nw_config->is_block_ipv4(); });
-  CMD2_ANY_VALUE_V ("network.block.ipv4.set",        [nw_config](auto, auto& value) { return nw_config->set_block_ipv4(value); });
-  CMD2_ANY         ("network.block.ipv6",            [nw_config](auto, auto)        { return nw_config->is_block_ipv6(); });
-  CMD2_ANY_VALUE_V ("network.block.ipv6.set",        [nw_config](auto, auto& value) { return nw_config->set_block_ipv6(value); });
-  CMD2_ANY         ("network.block.ipv4in6",         [nw_config](auto, auto)        { return nw_config->is_block_ipv4in6(); });
-  CMD2_ANY_VALUE_V ("network.block.ipv4in6.set",     [nw_config](auto, auto& value) { return nw_config->set_block_ipv4in6(value); });
-  CMD2_ANY         ("network.block.outgoing",        [nw_config](auto, auto)        { return nw_config->is_block_outgoing(); });
-  CMD2_ANY_VALUE_V ("network.block.outgoing.set",    [nw_config](auto, auto& value) { return nw_config->set_block_outgoing(value); });
-  CMD2_ANY         ("network.prefer.ipv6",           [nw_config](auto, auto)        { return nw_config->is_prefer_ipv6(); });
-  CMD2_ANY_VALUE_V ("network.prefer.ipv6.set",       [nw_config](auto, auto& value) { return nw_config->set_prefer_ipv6(value); });
+  CMD_ANY         ("network.block.ipv4",                     [nw_config](auto, auto)         { return nw_config->is_block_ipv4(); });
+  CMD_ANY_VALUE_V ("network.block.ipv4.set",                 [nw_config](auto, auto& value)  { return nw_config->set_block_ipv4(value); });
+  CMD_ANY         ("network.block.ipv6",                     [nw_config](auto, auto)         { return nw_config->is_block_ipv6(); });
+  CMD_ANY_VALUE_V ("network.block.ipv6.set",                 [nw_config](auto, auto& value)  { return nw_config->set_block_ipv6(value); });
+  CMD_ANY         ("network.block.ipv4in6",                  [nw_config](auto, auto)         { return nw_config->is_block_ipv4in6(); });
+  CMD_ANY_VALUE_V ("network.block.ipv4in6.set",              [nw_config](auto, auto& value)  { return nw_config->set_block_ipv4in6(value); });
+  CMD_ANY         ("network.block.outgoing",                 [nw_config](auto, auto)         { return nw_config->is_block_outgoing(); });
+  CMD_ANY_VALUE_V ("network.block.outgoing.set",             [nw_config](auto, auto& value)  { return nw_config->set_block_outgoing(value); });
+  CMD_ANY         ("network.prefer.ipv6",                    [nw_config](auto, auto)         { return nw_config->is_prefer_ipv6(); });
+  CMD_ANY_VALUE_V ("network.prefer.ipv6.set",                [nw_config](auto, auto& value)  { return nw_config->set_prefer_ipv6(value); });
 
   rpc::rpc.mark_safe("network.port_open");
   rpc::rpc.mark_safe("network.port_random");
@@ -333,10 +429,9 @@ initialize_command_network() {
   rpc::rpc.mark_safe("network.http.max_host_connections");
   rpc::rpc.mark_safe("network.http.max_total_connections");
 
+  rpc::rpc.mark_safe("network.total_handshakes");
   rpc::rpc.mark_safe("network.open_files");
   rpc::rpc.mark_safe("network.max_open_files");
-  rpc::rpc.mark_safe("network.max_open_sockets");
-  rpc::rpc.mark_safe("network.total_handshakes");
 
   rpc::rpc.mark_safe("network.send_buffer.size");
   rpc::rpc.mark_safe("network.receive_buffer.size");
@@ -344,11 +439,13 @@ initialize_command_network() {
   rpc::rpc.mark_safe("network.local_address");
   rpc::rpc.mark_safe("network.xmlrpc.size_limit");
   rpc::rpc.mark_safe("network.open_sockets");
+
   rpc::rpc.mark_safe("network.http.cacert");
   rpc::rpc.mark_safe("network.http.capath");
-  rpc::rpc.mark_safe("network.http.proxy_address");
-  rpc::rpc.mark_safe("network.proxy_address");
+  rpc::rpc.mark_safe("network.proxy.global");
+  rpc::rpc.mark_safe("network.proxy.http");
   rpc::rpc.mark_safe("network.scgi.dont_route");
+
   rpc::rpc.mark_safe("protocol.pex");
 
   rpc::rpc.mark_safe("network.rpc.use_xmlrpc");

src/command_throttle.cc

@@ -70,33 +70,35 @@ parse_address_range(const torrent::Object::list_type& args, torrent::Object::lis
 
 torrent::Object
 apply_throttle(const torrent::Object::list_type& args, bool up) {
-  torrent::Object::list_const_iterator argItr = args.begin();
+  auto arg_itr = args.begin();
 
-  if (argItr == args.end())
+  if (arg_itr == args.end())
     throw torrent::input_error("Missing throttle name.");
 
-  const std::string& name = argItr->as_string();
+  const std::string& name = arg_itr->as_string();
   if (name.empty() || name == "NULL")
     throw torrent::input_error("Invalid throttle name '" + name + "'.");
 
-  if (++argItr == args.end() || argItr->as_string().empty())
+  if (++arg_itr == args.end() || arg_itr->as_string().empty())
     throw torrent::input_error("Missing throttle rate for '" + name + "'.");
 
   int64_t rate;
-  rpc::parse_whole_value_nothrow(argItr->as_string().c_str(), &rate);
+  rpc::parse_whole_value_nothrow(arg_itr->as_string().c_str(), &rate);
 
   if (rate < 0)
     throw torrent::input_error("Throttle rate must be non-negative.");
 
-  core::ThrottleMap::iterator itr = control->core()->throttles().find(name);
-  if (itr == control->core()->throttles().end())
-    itr = control->core()->throttles().insert(std::make_pair(name, torrent::ThrottlePair(NULL, NULL))).first;
+  auto itr = control->core()->throttles().find(name);
 
-  torrent::Throttle*& throttle = up ? itr->second.first : itr->second.second;
-  if (rate != 0 && throttle == NULL)
+  if (itr == control->core()->throttles().end())
+    itr = control->core()->throttles().insert(std::make_pair(name, core::ThrottlePair(nullptr, nullptr))).first;
+
+  auto*& throttle = up ? itr->second.first : itr->second.second;
+
+  if (rate != 0 && throttle == nullptr)
     throttle = (up ? torrent::up_throttle_global() : torrent::down_throttle_global())->create_slave();
 
-  if (throttle != NULL)
+  if (throttle != nullptr)
     throttle->set_max_rate(rate * 1024);
 
   return torrent::Object();
@@ -109,10 +111,10 @@ static const int throttle_info_rate = (1 << 3);
 
 torrent::Object
 retrieve_throttle_info(const torrent::Object::string_type& name, int flags) {
-  core::ThrottleMap::iterator itr = control->core()->throttles().find(name);
-  torrent::ThrottlePair throttles = itr == control->core()->throttles().end() ? torrent::ThrottlePair(NULL, NULL) : itr->second;
-  torrent::Throttle* throttle = flags & throttle_info_down ? throttles.second : throttles.first;
-  torrent::Throttle* global = flags & throttle_info_down ? torrent::down_throttle_global() : torrent::up_throttle_global();
+  auto  itr       = control->core()->throttles().find(name);
+  auto  throttles = (itr == control->core()->throttles().end()) ? core::ThrottlePair(nullptr, nullptr) : itr->second;
+  auto* throttle  = flags & throttle_info_down ? throttles.second : throttles.first;
+  auto* global    = flags & throttle_info_down ? torrent::down_throttle_global() : torrent::up_throttle_global();
 
   if (throttle == NULL && name.empty())
     throttle = global;
@@ -127,20 +129,6 @@ retrieve_throttle_info(const torrent::Object::string_type& name, int flags) {
     return (int64_t)throttle->max_rate();
 }
 
-torrent::Object
-apply_address_throttle(const torrent::Object::list_type& args) {
-  if (args.size() < 2 || args.size() > 3)
-    throw torrent::input_error("Incorrect number of arguments.");
-
-  std::pair<uint32_t, uint32_t> range = parse_address_range(args, ++args.begin());
-  core::ThrottleMap::iterator throttleItr = control->core()->throttles().find(args.begin()->as_string().c_str());
-  if (throttleItr == control->core()->throttles().end())
-    throw torrent::input_error("Throttle not found.");
-
-  control->core()->set_address_throttle(range.first, range.second, throttleItr->second);
-  return torrent::Object();
-}
-
 torrent::Object
 throttle_update(const char* variable, int64_t value) {
   rpc::commands.call_command(variable, value);
@@ -198,7 +186,6 @@ initialize_command_throttle() {
   // than kB.
   CMD2_ANY_LIST    ("throttle.up",                          std::bind(&apply_throttle, std::placeholders::_2, true));
   CMD2_ANY_LIST    ("throttle.down",                        std::bind(&apply_throttle, std::placeholders::_2, false));
-  CMD2_ANY_LIST    ("throttle.ip",                          std::bind(&apply_address_throttle, std::placeholders::_2));
 
   CMD2_ANY_STRING  ("throttle.up.max",    std::bind(&retrieve_throttle_info, std::placeholders::_2, throttle_info_up | throttle_info_max));
   CMD2_ANY_STRING  ("throttle.up.rate",   std::bind(&retrieve_throttle_info, std::placeholders::_2, throttle_info_up | throttle_info_rate));

src/command_tracker.cc

@@ -6,6 +6,7 @@
 #include <torrent/net/resolver.h>
 #include <torrent/runtime/network_config.h>
 #include <torrent/runtime/network_manager.h>
+#include <torrent/system/callbacks.h>
 #include <torrent/tracker/dht_controller.h>
 #include <torrent/tracker/tracker.h>
 #include <torrent/utils/log.h>
@@ -48,8 +49,10 @@ apply_dht_add_node(const std::string& arg) {
 
   // TODO: Move this lookup to DhtController.
 
+  auto callback_id = torrent::system::make_callback_id();
+
   // Currently discarding SOCK_STREAM.
-  torrent::this_thread::resolver()->resolve_specific(nullptr, host_str, PF_INET, [host_str, port](torrent::c_sa_shared_ptr sa, int err) {
+  torrent::this_thread::resolver()->resolve_specific(callback_id, host_str, PF_INET, [host_str, port](torrent::c_sa_shared_ptr sa, int err) {
       if (sa == nullptr) {
         lt_log_print(torrent::LOG_DHT_ERROR, "dht.add_node : could not resolve host : %s (%s)", gai_strerror(err), host_str.c_str());
         return;
@@ -78,73 +81,71 @@ apply_enable_trackers(int64_t arg) {
 
 void
 initialize_command_tracker() {
-  CMD2_TRACKER        ("t.is_busy",           std::bind(&torrent::tracker::Tracker::is_busy, std::placeholders::_1));
-  CMD2_TRACKER        ("t.is_enabled",        std::bind(&torrent::tracker::Tracker::is_enabled, std::placeholders::_1));
-  CMD2_TRACKER        ("t.is_extra_tracker",  std::bind(&torrent::tracker::Tracker::is_extra_tracker, std::placeholders::_1));
-  CMD2_TRACKER        ("t.is_open",           std::bind(&torrent::tracker::Tracker::is_busy, std::placeholders::_1));
-  CMD2_TRACKER        ("t.is_scrapable",      std::bind(&torrent::tracker::Tracker::is_scrapable, std::placeholders::_1));
-  CMD2_TRACKER        ("t.is_usable",         std::bind(&torrent::tracker::Tracker::is_usable, std::placeholders::_1));
+  CMD2_TRACKER        ("t.is_busy",            [](auto* tracker, auto) { return tracker->is_requesting(); });
+  CMD2_TRACKER        ("t.is_enabled",         [](auto* tracker, auto) { return tracker->is_enabled(); });
+  CMD2_TRACKER        ("t.is_extra_tracker",   [](auto* tracker, auto) { return tracker->is_extra_tracker(); });
+  CMD2_TRACKER        ("t.is_open",            [](auto* tracker, auto) { return tracker->is_requesting(); });
+  CMD2_TRACKER        ("t.is_scrapable",       [](auto* tracker, auto) { return tracker->is_scrapable(); });
+  CMD2_TRACKER        ("t.is_usable",          [](auto* tracker, auto) { return tracker->is_usable(); });
 
   // TODO: Deprecate.
-  CMD2_TRACKER        ("t.can_scrape",        std::bind(&torrent::tracker::Tracker::is_scrapable, std::placeholders::_1));
+  CMD2_TRACKER        ("t.can_scrape",         [](auto* tracker, auto) { return tracker->is_scrapable(); });
 
-  CMD2_TRACKER_V      ("t.enable",            std::bind(&torrent::tracker::Tracker::enable, std::placeholders::_1));
-  CMD2_TRACKER_V      ("t.disable",           std::bind(&torrent::tracker::Tracker::disable, std::placeholders::_1));
+  CMD2_TRACKER_V      ("t.enable",             [](auto* tracker, auto) { tracker->enable(); });
+  CMD2_TRACKER_V      ("t.disable",            [](auto* tracker, auto) { tracker->disable(); });
 
-  CMD2_TRACKER_VALUE_V("t.is_enabled.set",    std::bind(&tracker_set_enabled, std::placeholders::_1, std::placeholders::_2));
+  CMD2_TRACKER_VALUE_V("t.is_enabled.set",     [](auto* tracker, auto& value) { return tracker_set_enabled(tracker, value); });
 
-  CMD2_TRACKER        ("t.url",               std::bind(&torrent::tracker::Tracker::url, std::placeholders::_1));
-  CMD2_TRACKER        ("t.group",             std::bind(&torrent::tracker::Tracker::group, std::placeholders::_1));
-  CMD2_TRACKER        ("t.type",              std::bind(&torrent::tracker::Tracker::type, std::placeholders::_1));
-  CMD2_TRACKER        ("t.id",                std::bind(&torrent::tracker::Tracker::tracker_id, std::placeholders::_1));
+  CMD2_TRACKER        ("t.url",                [](auto* tracker, auto) { return tracker->url(); });
+  CMD2_TRACKER        ("t.group",              [](auto* tracker, auto) { return tracker->group(); });
+  CMD2_TRACKER        ("t.type",               [](auto* tracker, auto) { return tracker->type(); });
+  CMD2_TRACKER        ("t.id",                 [](auto* tracker, auto) { return tracker->tracker_id(); });
 
-  CMD2_TRACKER        ("t.latest_event",      [](auto* tracker, auto) { return tracker->state().latest_event(); });
-  CMD2_TRACKER        ("t.latest_new_peers",  [](auto* tracker, auto) { return tracker->state().latest_new_peers(); });
-  CMD2_TRACKER        ("t.latest_sum_peers",  [](auto* tracker, auto) { return tracker->state().latest_sum_peers(); });
+  CMD2_TRACKER        ("t.latest_event",       [](auto* tracker, auto) { return tracker->state().latest_event(); });
+  CMD2_TRACKER        ("t.latest_new_peers",   [](auto* tracker, auto) { return tracker->state().latest_new_peers(); });
+  CMD2_TRACKER        ("t.latest_sum_peers",   [](auto* tracker, auto) { return tracker->state().latest_sum_peers(); });
 
-  CMD2_TRACKER        ("t.normal_interval",   [](auto* tracker, auto) { return tracker->state().normal_interval(); });
-  CMD2_TRACKER        ("t.min_interval",      [](auto* tracker, auto) { return tracker->state().min_interval(); });
+  CMD2_TRACKER        ("t.normal_interval",    [](auto* tracker, auto) { return tracker->state().normal_interval().count(); });
+  CMD2_TRACKER        ("t.min_interval",       [](auto* tracker, auto) { return tracker->state().min_interval().count(); });
 
-  CMD2_TRACKER        ("t.activity_time_next", [](auto* tracker, auto) { return tracker->state().activity_time_next(); });
-  CMD2_TRACKER        ("t.activity_time_last", [](auto* tracker, auto) { return tracker->state().activity_time_last(); });
+  CMD2_TRACKER        ("t.activity_time_next", [](auto* tracker, auto) { return tracker->state().activity_time_next().count(); });
+  CMD2_TRACKER        ("t.activity_time_last", [](auto* tracker, auto) { return tracker->state().activity_time_last().count(); });
 
-  CMD2_TRACKER        ("t.success_time_next", [](auto* tracker, auto) { return tracker->state().success_time_next(); });
-  CMD2_TRACKER        ("t.success_time_last", [](auto* tracker, auto) { return tracker->state().success_time_last(); });
-  CMD2_TRACKER        ("t.success_counter",   [](auto* tracker, auto) { return tracker->state().success_counter(); });
+  CMD2_TRACKER        ("t.success_time_next",  [](auto* tracker, auto) { return tracker->state().success_time_next().count(); });
+  CMD2_TRACKER        ("t.success_time_last",  [](auto* tracker, auto) { return tracker->state().success_time_last().count(); });
+  CMD2_TRACKER        ("t.success_counter",    [](auto* tracker, auto) { return tracker->state().success_counter(); });
 
-  CMD2_TRACKER        ("t.failed_time_next",  [](auto* tracker, auto) { return tracker->state().failed_time_next(); });
-  CMD2_TRACKER        ("t.failed_time_last",  [](auto* tracker, auto) { return tracker->state().failed_time_last(); });
-  CMD2_TRACKER        ("t.failed_counter",    [](auto* tracker, auto) { return tracker->state().failed_counter(); });
+  CMD2_TRACKER        ("t.failed_time_next",   [](auto* tracker, auto) { return tracker->state().failed_time_next().count(); });
+  CMD2_TRACKER        ("t.failed_time_last",   [](auto* tracker, auto) { return tracker->state().failed_time_last().count(); });
+  CMD2_TRACKER        ("t.failed_counter",     [](auto* tracker, auto) { return tracker->state().failed_counter(); });
 
-  CMD2_TRACKER        ("t.scrape_time_last",  [](auto* tracker, auto) { return tracker->state().scrape_time_last(); });
-  CMD2_TRACKER        ("t.scrape_counter",    [](auto* tracker, auto) { return tracker->state().scrape_counter(); });
+  CMD2_TRACKER        ("t.scrape_time_last",   [](auto* tracker, auto) { return tracker->state().scrape_time_last().count(); });
+  CMD2_TRACKER        ("t.scrape_counter",     [](auto* tracker, auto) { return tracker->state().scrape_counter(); });
 
-  CMD2_TRACKER        ("t.scrape_complete",   [](auto* tracker, auto) { return tracker->state().scrape_complete(); });
-  CMD2_TRACKER        ("t.scrape_incomplete", [](auto* tracker, auto) { return tracker->state().scrape_incomplete(); });
-  CMD2_TRACKER        ("t.scrape_downloaded", [](auto* tracker, auto) { return tracker->state().scrape_downloaded(); });
+  CMD2_TRACKER        ("t.scrape_complete",    [](auto* tracker, auto) { return tracker->state().scrape_complete(); });
+  CMD2_TRACKER        ("t.scrape_incomplete",  [](auto* tracker, auto) { return tracker->state().scrape_incomplete(); });
+  CMD2_TRACKER        ("t.scrape_downloaded",  [](auto* tracker, auto) { return tracker->state().scrape_downloaded(); });
 
-  CMD2_ANY_VALUE      ("trackers.enable",     std::bind(&apply_enable_trackers, int64_t(1)));
-  CMD2_ANY_VALUE      ("trackers.disable",    std::bind(&apply_enable_trackers, int64_t(0)));
+  CMD2_ANY_VALUE      ("trackers.enable",      [](auto, auto)          { return apply_enable_trackers(1); });
+  CMD2_ANY_VALUE      ("trackers.disable",     [](auto, auto)          { return apply_enable_trackers(0); });
   CMD2_VAR_BOOL       ("trackers.delay_scrape", false);
-  CMD2_VAR_VALUE      ("trackers.numwant",    -1);
+  CMD2_VAR_VALUE      ("trackers.numwant",      -1);
 
   CMD2_ANY            ("trackers.use_udp",     [](auto, auto) { return true; });
   CMD2_ANY_VALUE_V    ("trackers.use_udp.set", [](auto, auto) {
       lt_log_print(torrent::LOG_ERROR, "trackers.use_udp.set is no longer supported", 0);
     })
 
-  auto dht_manager = control->dht_manager();
-
-  CMD2_ANY_STRING_V   ("dht.mode.set",          std::bind(&core::DhtManager::set_mode, control->dht_manager(), std::placeholders::_2));
-  CMD2_ANY            ("dht.port",              [](auto, auto) { return torrent::runtime::network_manager()->dht_controller()->port(); });
+  CMD2_ANY_STRING_V   ("dht.mode.set",          [](auto, auto& str) { return control->dht_manager()->set_mode_by_user(str); });
+  CMD2_ANY            ("dht.port",              [](auto, auto)      { return torrent::runtime::network_manager()->dht_controller()->port(); });
   CMD2_ANY_VALUE_V    ("dht.port.set",          [](auto, auto) {
       lt_log_print(torrent::LOG_DHT_ERROR, "dht.port.set is no longer supported, use dht.override_port.set", 0);
     });
-  CMD2_ANY            ("dht.override_port",     std::bind(&torrent::runtime::NetworkConfig::override_dht_port, torrent::runtime::network_config()));
-  CMD2_ANY_VALUE_V    ("dht.override_port.set", std::bind(&torrent::runtime::NetworkConfig::set_override_dht_port, torrent::runtime::network_config(), std::placeholders::_2));
+  CMD2_ANY            ("dht.override_port",     [](auto, auto)        { return torrent::runtime::network_config()->override_dht_port(); });
+  CMD2_ANY_VALUE_V    ("dht.override_port.set", [](auto, auto& value) { return torrent::runtime::network_manager()->set_dht_port(value); });
 
-  CMD2_ANY_STRING     ("dht.add_node",          std::bind(&apply_dht_add_node, std::placeholders::_2));
-  CMD2_ANY            ("dht.statistics",        std::bind(&core::DhtManager::dht_statistics, dht_manager));
+  CMD2_ANY_STRING     ("dht.add_node",          [](auto, auto& str)   { return apply_dht_add_node(str); });
+  CMD2_ANY            ("dht.statistics",        [](auto, auto)        { return control->dht_manager()->dht_statistics(); });
 
   rpc::rpc.mark_safe("t.url");
   rpc::rpc.mark_safe("t.group");

src/command_ui.cc

@@ -472,11 +472,14 @@ apply_to_throttle(const torrent::Object& rawArgs) {
 // if (cond1) { branch1 } else if (cond2) { branch2 } else { branch3 }
 // <cond1>,<branch1>,<cond2>,<branch2>,<branch3>
 torrent::Object
-apply_if(rpc::target_type target, const torrent::Object& rawArgs, int flags) {
-  const torrent::Object::list_type& args = rawArgs.as_list();
-  torrent::Object::list_const_iterator itr = args.begin();
+apply_if(rpc::target_type target, const torrent::Object& raw_args, int flags) {
+  auto& args = raw_args.as_list();
+  auto  itr  = args.begin();
 
-  while (itr != args.end() && itr != --args.end()) {
+  if (args.empty())
+    throw torrent::input_error("Empty argument list to " + std::string((flags & 0x1) ? "branch" : "if") + ".");
+
+  {
     torrent::Object tmp;
     const torrent::Object* conditional;
 
@@ -500,40 +503,44 @@ apply_if(rpc::target_type target, const torrent::Object& rawArgs, int flags) {
       result = false;
       break;
     default:
-      throw torrent::input_error("Type not supported by 'if'.");
+      throw torrent::input_error("Type not supported by " + std::string((flags & 0x1) ? "branch" : "if") + ".");
     };
 
     itr++;
 
-    if (result)
-      break;
-
-    itr++;
+    if (!result && itr != args.end())
+      itr++;
   }
 
   if (itr == args.end())
     return torrent::Object();
 
-  if (flags & 0x1 && itr->is_string()) {
-    return rpc::parse_command(target, itr->as_string().c_str(), itr->as_string().c_str() + itr->as_string().size()).first;
+  if (flags & 0x1) {
+    if (itr->is_string())
+      return rpc::parse_command(target, itr->as_string().c_str(), itr->as_string().c_str() + itr->as_string().size()).first;
 
-  } else if (flags & 0x1 && itr->is_dict_key()) {
-    return rpc::commands.call_command(itr->as_dict_key().c_str(), itr->as_dict_obj(), target);
+    if (itr->is_dict_key())
+      return rpc::commands.call_command(itr->as_dict_key().c_str(), itr->as_dict_obj(), target);
 
-  } else if (flags & 0x1 && itr->is_list()) {
-    // Move this into a special function or something. Also, might be
-    // nice to have a parse_command function that takes list
-    // iterator...
+    if (itr->is_list()) {
+      for (const auto& cmd_itr : itr->as_list()) {
+        if (cmd_itr.is_string())
+          rpc::parse_command(target, cmd_itr.as_string().c_str(), cmd_itr.as_string().c_str() + cmd_itr.as_string().size());
 
-    for (const auto& cmdItr : itr->as_list())
-      if (cmdItr.is_string())
-        rpc::parse_command(target, cmdItr.as_string().c_str(), cmdItr.as_string().c_str() + cmdItr.as_string().size());
+        else if (cmd_itr.is_dict_key())
+          rpc::commands.call_command(cmd_itr.as_dict_key().c_str(), cmd_itr.as_dict_obj(), target);
 
-    return torrent::Object();
+        else
+          throw torrent::input_error("Invalid command type in branch list.");
+      }
 
-  } else {
-    return *itr;
+      return torrent::Object();
+    }
+
+    throw torrent::input_error("Invalid command type in branch.");
   }
+
+  return *itr;
 }
 
 torrent::Object
@@ -795,61 +802,59 @@ apply_set_color(int color_id, const torrent::Object::string_type& color_str) {
 
 void
 initialize_command_ui() {
-  CMD2_VAR_STRING("keys.layout", "qwerty");
+  CMD2_VAR_STRING  ("keys.layout", "qwerty");
 
-  CMD2_ANY_STRING("view.add", object_convert_void(std::bind(&core::ViewManager::insert_throw, control->view_manager(), std::placeholders::_2)));
+  CMD2_ANY_STRING  ("view.add", object_convert_void(std::bind(&core::ViewManager::insert_throw, control->view_manager(), std::placeholders::_2)));
 
-  CMD2_ANY_L   ("view.list",          std::bind(&apply_view_list));
-  CMD2_ANY_LIST("view.set",           std::bind(&apply_view_set, std::placeholders::_2));
+  CMD2_ANY_L       ("view.list",          std::bind(&apply_view_list));
+  CMD2_ANY_LIST    ("view.set",           std::bind(&apply_view_set, std::placeholders::_2));
 
-  CMD2_ANY_LIST  ("view.filter",      std::bind(&apply_view_event, &core::ViewManager::set_filter, std::placeholders::_2));
-  CMD2_ANY_LIST  ("view.filter_on",   std::bind(&apply_view_filter_on, std::placeholders::_2));
-  CMD2_ANY_LIST  ("view.filter.temp", std::bind(&apply_view_event, &core::ViewManager::set_filter_temp, std::placeholders::_2));
-  CMD2_VAR_STRING("view.filter.temp.excluded", "default,started,stopped");
-  CMD2_VAR_BOOL  ("view.filter.temp.log", 0);
+  CMD2_ANY_LIST    ("view.filter",      std::bind(&apply_view_event, &core::ViewManager::set_filter, std::placeholders::_2));
+  CMD2_ANY_LIST    ("view.filter_on",   std::bind(&apply_view_filter_on, std::placeholders::_2));
+  CMD2_ANY_LIST    ("view.filter.temp", std::bind(&apply_view_event, &core::ViewManager::set_filter_temp, std::placeholders::_2));
+  CMD2_VAR_STRING  ("view.filter.temp.excluded", "default,started,stopped");
+  CMD2_VAR_BOOL    ("view.filter.temp.log", 0);
 
-  CMD2_ANY_LIST("view.sort",          std::bind(&apply_view_sort, std::placeholders::_2));
-  CMD2_ANY_LIST("view.sort_new",      std::bind(&apply_view_event, &core::ViewManager::set_sort_new, std::placeholders::_2));
-  CMD2_ANY_LIST("view.sort_current",  std::bind(&apply_view_event, &core::ViewManager::set_sort_current, std::placeholders::_2));
+  CMD2_ANY_LIST    ("view.sort",          std::bind(&apply_view_sort, std::placeholders::_2));
+  CMD2_ANY_LIST    ("view.sort_new",      std::bind(&apply_view_event, &core::ViewManager::set_sort_new, std::placeholders::_2));
+  CMD2_ANY_LIST    ("view.sort_current",  std::bind(&apply_view_event, &core::ViewManager::set_sort_current, std::placeholders::_2));
 
-  CMD2_ANY_LIST("view.event_added",   std::bind(&apply_view_event, &core::ViewManager::set_event_added, std::placeholders::_2));
-  CMD2_ANY_LIST("view.event_removed", std::bind(&apply_view_event, &core::ViewManager::set_event_removed, std::placeholders::_2));
+  CMD2_ANY_LIST    ("view.event_added",   std::bind(&apply_view_event, &core::ViewManager::set_event_added, std::placeholders::_2));
+  CMD2_ANY_LIST    ("view.event_removed", std::bind(&apply_view_event, &core::ViewManager::set_event_removed, std::placeholders::_2));
 
-  // Cleanup and add . to view.
-
-  CMD2_ANY_STRING("view.size",              std::bind(&cmd_view_size, std::placeholders::_2));
-  CMD2_ANY_STRING("view.size_not_visible",  std::bind(&cmd_view_size_not_visible, std::placeholders::_2));
-  CMD2_ANY_STRING("view.persistent",        std::bind(&cmd_view_persistent, std::placeholders::_2));
+  CMD2_ANY_STRING  ("view.size",              std::bind(&cmd_view_size, std::placeholders::_2));
+  CMD2_ANY_STRING  ("view.size_not_visible",  std::bind(&cmd_view_size_not_visible, std::placeholders::_2));
+  CMD2_ANY_STRING  ("view.persistent",        std::bind(&cmd_view_persistent, std::placeholders::_2));
 
   CMD2_ANY_STRING_V("view.filter_all",      std::bind(&core::View::filter, std::bind(&core::ViewManager::find_ptr_throw, control->view_manager(), std::placeholders::_2)));
 
-  CMD2_DL_STRING ("view.filter_download", std::bind(&cmd_view_filter_download, std::placeholders::_1, std::placeholders::_2));
-  CMD2_DL_STRING ("view.set_visible",     std::bind(&cmd_view_set_visible,     std::placeholders::_1, std::placeholders::_2));
-  CMD2_DL_STRING ("view.set_not_visible", std::bind(&cmd_view_set_not_visible, std::placeholders::_1, std::placeholders::_2));
+  CMD2_DL_STRING   ("view.filter_download", std::bind(&cmd_view_filter_download, std::placeholders::_1, std::placeholders::_2));
+  CMD2_DL_STRING   ("view.set_visible",     std::bind(&cmd_view_set_visible,     std::placeholders::_1, std::placeholders::_2));
+  CMD2_DL_STRING   ("view.set_not_visible", std::bind(&cmd_view_set_not_visible, std::placeholders::_1, std::placeholders::_2));
 
   // Commands that affect the default rtorrent UI.
-  CMD2_DL        ("ui.unfocus_download",   std::bind(&cmd_ui_unfocus_download, std::placeholders::_1));
-  CMD2_ANY       ("ui.current_view",       std::bind(&cmd_ui_current_view));
-  CMD2_ANY_STRING("ui.current_view.set",   std::bind(&cmd_ui_set_view, std::placeholders::_2));
+  CMD2_DL          ("ui.unfocus_download",   std::bind(&cmd_ui_unfocus_download, std::placeholders::_1));
+  CMD2_ANY         ("ui.current_view",       std::bind(&cmd_ui_current_view));
+  CMD2_ANY_STRING  ("ui.current_view.set",   std::bind(&cmd_ui_set_view, std::placeholders::_2));
 
-  CMD2_ANY        ("ui.input.history.size",     std::bind(&ui::Root::get_input_history_size, control->ui()));
-  CMD2_ANY_VALUE_V("ui.input.history.size.set", std::bind(&ui::Root::set_input_history_size, control->ui(), std::placeholders::_2));
-  CMD2_ANY_V      ("ui.input.history.clear",    std::bind(&ui::Root::clear_input_history, control->ui()));
+  CMD2_ANY         ("ui.input.history.size",     std::bind(&ui::Root::get_input_history_size, control->ui()));
+  CMD2_ANY_VALUE_V ("ui.input.history.size.set", std::bind(&ui::Root::set_input_history_size, control->ui(), std::placeholders::_2));
+  CMD2_ANY_V       ("ui.input.history.clear",    std::bind(&ui::Root::clear_input_history, control->ui()));
 
-  CMD2_VAR_VALUE ("ui.throttle.global.step.small",  5);
-  CMD2_VAR_VALUE ("ui.throttle.global.step.medium", 50);
-  CMD2_VAR_VALUE ("ui.throttle.global.step.large",  500);
+  CMD2_VAR_VALUE   ("ui.throttle.global.step.small",  5);
+  CMD2_VAR_VALUE   ("ui.throttle.global.step.medium", 50);
+  CMD2_VAR_VALUE   ("ui.throttle.global.step.large",  500);
 
-  CMD2_VAR_VALUE ("ui.focus.page_size", 0);
+  CMD2_VAR_VALUE   ("ui.focus.page_size", 0);
 
-  CMD2_ANY_LIST  ("ui.status.throttle.up.set",   std::bind(&cmd_status_throttle_names, true, std::placeholders::_2));
-  CMD2_ANY_LIST  ("ui.status.throttle.down.set", std::bind(&cmd_status_throttle_names, false, std::placeholders::_2));
+  CMD2_ANY_LIST    ("ui.status.throttle.up.set",   std::bind(&cmd_status_throttle_names, true, std::placeholders::_2));
+  CMD2_ANY_LIST    ("ui.status.throttle.down.set", std::bind(&cmd_status_throttle_names, false, std::placeholders::_2));
 
   CMD2_ANY         ("ui.keymap.style",     std::bind(&ui::Root::keymap_style, control->ui()));
   CMD2_ANY_STRING_V("ui.keymap.style.set", std::bind(&ui::Root::set_keymap_style, control->ui(), std::placeholders::_2));
 
   // TODO: Add 'option_string' for rtorrent-specific options.
-  CMD2_VAR_STRING("ui.torrent_list.layout", "full");
+  CMD2_VAR_STRING  ("ui.torrent_list.layout", "full");
 
   // Move.
   CMD2_ANY("print", &apply_print);

src/control.cc

@@ -6,6 +6,7 @@
 #include <sys/stat.h>
 #include <torrent/net/http_stack.h>
 #include <torrent/runtime/network_manager.h>
+#include <torrent/runtime/runtime.h>
 #include <torrent/utils/directory_events.h>
 
 #include "core/dht_manager.h"
@@ -27,6 +28,7 @@
 #include "rpc/object_storage.h"
 #include "session/session_manager.h"
 #include "ui/root.h"
+#include "utils/watch_ready_queue.h"
 
 Control::Control()
   : m_ui(new ui::Root()),
@@ -36,7 +38,8 @@ Control::Control()
     m_commandScheduler(new rpc::CommandScheduler()),
     m_objectStorage(new rpc::object_storage()),
     m_lua_engine(new rpc::LuaEngine()),
-    m_directory_events(new torrent::directory_events()) {
+    m_directory_events(new torrent::directory_events()),
+    m_watch_ready_queue(new utils::WatchReadyQueue()) {
 
   m_core         = std::make_unique<core::Manager>();
   m_view_manager = std::make_unique<core::ViewManager>();
@@ -44,7 +47,8 @@ Control::Control()
 
   m_inputStdin->slot_pressed(std::bind(&input::Manager::pressed, m_input.get(), std::placeholders::_1));
 
-  m_task_shutdown.slot() = std::bind(&Control::handle_shutdown, this);
+  m_task_shutdown.slot()                = [this] { handle_shutdown(); };
+  m_task_shutdown_clear_requests.slot() = [this] { handle_shutdown_clear_requests(); };
 
   m_commandScheduler->set_slot_error_message([this](const std::string& msg) { m_core->push_log_std(msg); });
 }
@@ -66,15 +70,12 @@ Control::initialize() {
   display::Window::slot_unschedule([this](display::Window* w) { m_display->unschedule(w); });
   display::Window::slot_adjust([this]() { m_display->adjust_layout(); });
 
-  torrent::net_thread::http_stack()->set_user_agent(USER_AGENT);
-
-  m_core->listen_open();
   m_core->set_hashing_view(*m_view_manager->find_throw("hashing"));
 
   m_ui->init(this);
 
   if(!display::Canvas::daemon())
-    m_inputStdin->insert(torrent::this_thread::poll());
+    m_inputStdin->insert();
 }
 
 void
@@ -82,9 +83,12 @@ Control::cleanup() {
   rpc::rpc.cleanup();
 
   torrent::this_thread::scheduler()->erase(&m_task_shutdown);
+  torrent::this_thread::scheduler()->erase(&m_task_shutdown_clear_requests);
 
   if(!display::Canvas::daemon())
-    m_inputStdin->remove(torrent::this_thread::poll());
+    m_inputStdin->remove();
+
+  m_directory_events->close();
 
   if (scgi_thread::thread()->is_active())
     scgi_thread::thread()->stop_thread_wait();
@@ -109,7 +113,7 @@ Control::cleanup_exception() {
 
 bool
 Control::is_shutdown_completed() {
-  if (!m_shutdownQuick)
+  if (!m_shutdown_quick)
     return false;
 
   // Tracker requests can be disowned, so wait for these to
@@ -126,13 +130,16 @@ Control::is_shutdown_completed() {
 
 void
 Control::handle_shutdown() {
+  m_watch_ready_queue->shutdown();
+
   rpc::commands.call_catch("event.system.shutdown", rpc::make_target(), "shutdown", "System shutdown event action failed: ");
 
   if (scgi_thread::thread()->is_active())
     scgi_thread::thread()->stop_thread_wait();
 
-  if (!m_shutdownQuick) {
+  if (!m_shutdown_quick) {
     torrent::runtime::network_manager()->listen_close();
+    torrent::runtime::shutdown();
 
     m_directory_events->close();
     m_core->shutdown(false);
@@ -141,10 +148,24 @@ Control::handle_shutdown() {
       torrent::this_thread::scheduler()->wait_for_ceil_seconds(&m_task_shutdown, 5s);
 
   } else {
+    torrent::runtime::quick_shutdown();
     m_core->shutdown(true);
   }
 
-  m_shutdownQuick = true;
-  m_shutdownReceived = false;
+  if (!m_task_shutdown_clear_requests.is_scheduled())
+    torrent::this_thread::scheduler()->wait_for_ceil_seconds(&m_task_shutdown_clear_requests, 10s);
+
+  m_shutdown_quick    = true;
+  m_shutdown_received = false;
 }
 
+void
+Control::handle_shutdown_clear_requests() {
+  torrent::net_thread::http_stack()->clear_requests();
+
+  // Use 5s for the initial wait to ensure trackers get a chance to finish both IPv4 and IPv6 requests.
+  if (m_clear_requests_count++ == 0)
+    torrent::this_thread::scheduler()->wait_for(&m_task_shutdown_clear_requests, 5s);
+  else
+    torrent::this_thread::scheduler()->wait_for(&m_task_shutdown_clear_requests, 1s);
+}

src/control.h

@@ -6,7 +6,7 @@
 #include <memory>
 #include <sys/types.h>
 #include <torrent/torrent.h>
-#include <torrent/utils/scheduler.h>
+#include <torrent/system/scheduler.h>
 
 namespace ui {
   class Root;
@@ -38,23 +38,28 @@ namespace torrent {
   class directory_events;
 }
 
+namespace utils {
+  class WatchReadyQueue;
+}
+
 class Control {
 public:
   Control();
   ~Control();
 
   bool                is_shutdown_completed();
-  bool                is_shutdown_received()        { return m_shutdownReceived; }
-  bool                is_shutdown_started()         { return m_shutdownQuick; }
+  bool                is_shutdown_received()        { return m_shutdown_received; }
+  bool                is_shutdown_started()         { return m_shutdown_quick; }
 
   void                initialize();
   void                cleanup();
   void                cleanup_exception();
 
   void                handle_shutdown();
+  void                handle_shutdown_clear_requests();
 
-  void                receive_normal_shutdown()     { m_shutdownReceived = true; }
-  void                receive_quick_shutdown()      { m_shutdownReceived = true; m_shutdownQuick = true; }
+  void                receive_normal_shutdown()     { m_shutdown_received = true; }
+  void                receive_quick_shutdown()      { m_shutdown_received = true; m_shutdown_quick = true; }
 
   core::Manager*      core()                        { return m_core.get(); }
   core::ViewManager*  view_manager()                { return m_view_manager.get(); }
@@ -70,6 +75,7 @@ public:
   rpc::LuaEngine*        lua_engine()               { return m_lua_engine.get(); }
 
   torrent::directory_events* directory_events()     { return m_directory_events.get(); }
+  utils::WatchReadyQueue*    watch_ready_queue()    { return m_watch_ready_queue.get(); }
 
   uint64_t            tick() const                  { return m_tick; }
   void                inc_tick()                    { m_tick++; }
@@ -94,16 +100,22 @@ private:
   std::unique_ptr<rpc::object_storage>       m_objectStorage;
   std::unique_ptr<rpc::LuaEngine>            m_lua_engine;
   std::unique_ptr<torrent::directory_events> m_directory_events;
+  std::unique_ptr<utils::WatchReadyQueue>    m_watch_ready_queue;
 
   uint64_t            m_tick{};
 
   mode_t              m_umask;
   std::string         m_workingDirectory;
 
-  torrent::utils::SchedulerEntry m_task_shutdown;
+  torrent::system::SchedulerEntry m_task_shutdown;
+  torrent::system::SchedulerEntry m_task_shutdown_clear_requests;
 
-  std::atomic<bool>   m_shutdownReceived{};
-  std::atomic<bool>   m_shutdownQuick{};
+  int                 m_clear_requests_count{};
+
+  align_cacheline
+
+  std::atomic<bool>   m_shutdown_received{};
+  std::atomic<bool>   m_shutdown_quick{};
 };
 
 #endif

src/core/dht_manager.cc

@@ -8,6 +8,7 @@
 #include <torrent/object_stream.h>
 #include <torrent/rate.h>
 #include <torrent/runtime/network_manager.h>
+#include <torrent/runtime/runtime.h>
 #include <torrent/tracker/dht_controller.h>
 #include <torrent/utils/log.h>
 
@@ -140,17 +141,32 @@ DhtManager::save_dht_cache() {
 }
 
 void
-DhtManager::set_mode(const std::string& arg) {
-  int i;
-  for (i = 0; i < dht_settings_num; i++) {
-    if (arg == dht_settings[i]) {
-      m_start = i;
-      break;
-    }
+DhtManager::set_mode_by_user(const std::string& arg) {
+  unsigned int mode = [arg]() {
+      for (int i = 0; i < dht_settings_num; i++) {
+        if (arg == dht_settings[i])
+          return i;
+      }
+
+      throw torrent::input_error("Invalid dht mode: " + arg);
+    }();
+
+  m_set_by_user = true;
+
+  if (!torrent::runtime::is_network_initialized()) {
+    m_start = mode;
+    return;
   }
 
-  if (i == dht_settings_num)
-    throw torrent::input_error("Invalid argument.");
+  set_mode_directly(mode);
+}
+
+void
+DhtManager::set_mode_directly(unsigned int mode) {
+  if (mode >= dht_settings_num)
+    throw torrent::input_error("Invalid dht mode.");
+
+  m_start = mode;
 
   if (m_start == dht_off)
     stop_dht();
@@ -158,6 +174,23 @@ DhtManager::set_mode(const std::string& arg) {
     start_dht();
 }
 
+void
+DhtManager::set_auto_if_untouched_and_has_session() {
+  if (m_set_by_user) {
+    set_mode_directly(m_start);
+    return;
+  }
+
+  if (rpc::call_command_string("session.path").empty()) {
+    LT_LOG("DHT auto-start disabled, session path not set.", 0);
+    return;
+  }
+
+  set_mode_directly(dht_auto);
+
+  LT_LOG("DHT auto-start enabled.", 0);
+}
+
 void
 DhtManager::update() {
   if (!torrent::runtime::network_manager()->is_dht_active())

src/core/dht_manager.h

@@ -2,12 +2,17 @@
 #define RTORRENT_CORE_DHT_MANAGER_H
 
 #include <torrent/object.h>
-#include <torrent/utils/scheduler.h>
+#include <torrent/system/scheduler.h>
 
 namespace core {
 
 class DhtManager {
 public:
+  static constexpr int dht_disable = 0;
+  static constexpr int dht_off     = 1;
+  static constexpr int dht_auto    = 2;
+  static constexpr int dht_on      = 3;
+
   ~DhtManager();
 
   void                load_dht_cache();
@@ -18,16 +23,14 @@ public:
   void                stop_dht();
   void                auto_start()                 { if (m_start == dht_auto) start_dht(); }
 
-  void                set_mode(const std::string& arg);
+  void                set_mode_by_user(const std::string& arg);
+  void                set_mode_directly(unsigned int mode);
+
+  void                set_auto_if_untouched_and_has_session();
 
 private:
-  static const int    dht_disable = 0;
-  static const int    dht_off     = 1;
-  static const int    dht_auto    = 2;
-  static const int    dht_on      = 3;
-
-  static const int    dht_settings_num = 4;
-  static const char*  dht_settings[dht_settings_num];
+  static constexpr int dht_settings_num = 4;
+  static const char*   dht_settings[dht_settings_num];
 
   void                update();
   bool                log_statistics(bool force);
@@ -39,10 +42,11 @@ private:
   uint64_t            m_dhtPrevBytesUp;
   uint64_t            m_dhtPrevBytesDown;
 
-  torrent::utils::SchedulerEntry m_update_timeout;
-  torrent::utils::SchedulerEntry m_stop_timeout;
+  torrent::system::SchedulerEntry m_update_timeout;
+  torrent::system::SchedulerEntry m_stop_timeout;
 
   bool                m_warned{};
+  bool                m_set_by_user{};
   int                 m_start{dht_off};
 };
 

src/core/download.cc

@@ -88,15 +88,16 @@ Download::distributed_copies() const {
 }
 
 void
-Download::set_throttle_name(const std::string& throttleName) {
+Download::set_throttle_name(const std::string& name) {
   if (m_download.info()->is_active())
     throw torrent::input_error("Cannot set throttle on active download.");
 
-  torrent::ThrottlePair throttles = control->core()->get_throttle(throttleName);
+  auto throttles = control->core()->get_throttle(name);
+
   m_download.set_upload_throttle(throttles.first);
   m_download.set_download_throttle(throttles.second);
 
-  m_download.bencode()->get_key("rtorrent").insert_key("throttle_name", throttleName);
+  m_download.bencode()->get_key("rtorrent").insert_key("throttle_name", name);
 }
 
 void
@@ -116,7 +117,7 @@ Download::set_root_directory(const std::string& path) {
 
       (file_list->is_multi_file() ?
        !file_list->is_root_dir_created() :
-       !file_stat.update(file_list->front()->frozen_path()))) {
+       !file_stat.update(file_list->front()->frozen_path().str()))) {
 
     set_message("Cannot change the directory of an open download after the files have been moved.");
     rpc::call_command("d.state.set", (int64_t)0, rpc::make_target(this));

src/core/download.h

@@ -22,6 +22,8 @@ public:
   typedef torrent::ConnectionList       connection_list_type;
   typedef download_type::ConnectionType connection_type;
 
+  static constexpr uint32_t default_resume_flags = ~uint32_t{} & ~torrent::Download::open_enable_fallocate;
+
   static const int variable_hashing_stopped = 0;
   static const int variable_hashing_initial = 1;
   static const int variable_hashing_last    = 2;
@@ -78,7 +80,7 @@ public:
 
   void                set_root_directory(const std::string& path);
 
-  void                set_throttle_name(const std::string& throttleName);
+  void                set_throttle_name(const std::string& name);
 
   bool                operator == (const std::string& str) const;
 
@@ -100,7 +102,7 @@ private:
   download_type       m_download;
   bool                m_hashFailed{};
   std::string         m_message;
-  uint32_t            m_resumeFlags{~uint32_t{}};
+  uint32_t            m_resumeFlags{default_resume_flags};
   unsigned int        m_group{};
 };
 

src/core/download_factory.cc

@@ -15,6 +15,7 @@
 #include <torrent/rate.h>
 #include <torrent/data/file_utils.h>
 #include <torrent/net/http_stack.h>
+#include <torrent/runtime/client_config.h>
 #include <torrent/utils/string_manip.h>
 
 #include "control.h"
@@ -104,40 +105,42 @@ DownloadFactory::receive_load() {
     throw torrent::internal_error("DownloadFactory::load*() called on an object with m_stream != NULL");
 
   if (is_network_uri(m_uri)) {
-    // Http handling here.
     m_stream.reset(new std::stringstream);
 
-    HttpQueue::iterator itr = m_manager->http_queue()->insert(m_uri, m_stream);
+    auto done_fn   = [this]() { receive_loaded(); };
+    auto failed_fn = [this](const std::string& error) { receive_failed(error); };
 
-    itr->add_done_slot([this]() { receive_loaded(); });
-    itr->add_failed_slot([this](const std::string& error) { receive_failed(error); });
+    m_manager->http_queue()->insert(m_uri, m_stream, done_fn, failed_fn);
 
     m_variables["tied_to_file"] = (int64_t)false;
+    return;
+  }
 
-  } else if (is_magnet_uri(m_uri)) {
+  if (is_magnet_uri(m_uri)) {
     // DEBUG: Use m_object.
     m_stream.reset(new std::stringstream());
     *m_stream << "d10:magnet-uri" << m_uri.length() << ":" << m_uri << "e";
 
     m_variables["tied_to_file"] = (int64_t)false;
-    receive_loaded();
-
-  } else {
-    std::fstream stream(expand_path(m_uri).c_str(), std::ios::in | std::ios::binary);
-
-    if (!stream.is_open())
-      return receive_failed("Could not open file");
-
-    m_object = new torrent::Object;
-    stream >> *m_object;
-
-    if (!stream.good())
-      return receive_failed("Reading torrent file failed");
-
-    m_isFile = true;
 
     receive_loaded();
+    return;
   }
+
+  std::fstream stream(expand_path(m_uri).c_str(), std::ios::in | std::ios::binary);
+
+  if (!stream.is_open())
+    return receive_failed("Could not open file");
+
+  m_object = new torrent::Object;
+  stream >> *m_object;
+
+  if (!stream.good())
+    return receive_failed("Reading torrent file failed");
+
+  m_isFile = true;
+
+  receive_loaded();
 }
 
 void
@@ -269,7 +272,7 @@ DownloadFactory::receive_success() {
   if (!m_session && m_variables["tied_to_file"].as_value())
     rpc::call_command("d.tied_to_file.set", m_uri.empty() ? m_variables["tied_file"] : m_uri, rpc::make_target(download));
 
-  rpc::call_command("d.peer_exchange.set", rpc::call_command_value("protocol.pex"), rpc::make_target(download));
+  rpc::call_command("d.peer_exchange.set", torrent::runtime::client_config()->is_pex_enabled(), rpc::make_target(download));
 
   torrent::resume_load_addresses(*download->download(), resumeObject);
   torrent::resume_load_file_priorities(*download->download(), resumeObject);

src/core/download_factory.h

@@ -9,7 +9,7 @@
 #include <iosfwd>
 
 #include <torrent/object.h>
-#include <torrent/utils/scheduler.h>
+#include <torrent/system/scheduler.h>
 
 #include "http_queue.h"
 
@@ -79,9 +79,9 @@ private:
   command_list_type         m_commands;
   torrent::Object::map_type m_variables;
 
-  slot_void                      m_slot_finished;
-  torrent::utils::SchedulerEntry m_task_load;
-  torrent::utils::SchedulerEntry m_task_commit;
+  slot_void                       m_slot_finished;
+  torrent::system::SchedulerEntry m_task_load;
+  torrent::system::SchedulerEntry m_task_commit;
 };
 
 bool is_network_uri(const std::string& uri);

src/core/download_list.cc

@@ -331,7 +331,7 @@ DownloadList::resume(Download* download, int flags) {
 
     // We need to make sure the flags aren't reset if someone decideds
     // to call resume() while it is hashing, etc.
-    if (download->resume_flags() == ~uint32_t())
+    if (download->resume_flags() == Download::default_resume_flags)
       download->set_resume_flags(flags);
 
     // Manual or end-of-download rehashing clears the resume data so
@@ -404,7 +404,7 @@ DownloadList::resume(Download* download, int flags) {
     download->set_priority(download->priority());
     download->download()->start(download->resume_flags());
 
-    download->set_resume_flags(~uint32_t());
+    download->set_resume_flags(Download::default_resume_flags);
 
     DL_TRIGGER_EVENT(download, "event.download.resumed");
 
@@ -421,7 +421,7 @@ DownloadList::pause(Download* download, int flags) {
 
   try {
 
-    download->set_resume_flags(~uint32_t());
+    download->set_resume_flags(Download::default_resume_flags);
 
     rpc::parse_command_single(rpc::make_target(download), "view.set_not_visible=active");
 
@@ -492,7 +492,11 @@ DownloadList::hash_done(Download* download) {
 
   if (!download->is_hash_checked()) {
     download->set_hash_failed(true);
-    
+
+    auto& msg = download->download()->hash_error_message();
+    if (!msg.empty())
+      download->set_message(msg);
+
     DL_TRIGGER_EVENT(download, "event.download.hash_failed");
     return;
   }
@@ -656,8 +660,8 @@ DownloadList::confirm_finished(Download* download) {
   if (find(infohash) == end())
     return;
 
-//   if (download->resume_flags() != ~uint32_t())
-//     throw torrent::internal_error("DownloadList::confirm_finished(...) download->resume_flags() != ~uint32_t().");
+//   if (download->resume_flags() != Download::default_resume_flags)
+//     throw torrent::internal_error("DownloadList::confirm_finished(...) download->resume_flags() != Download::default_resume_flags.");
 
   // See #1292.
   //
@@ -667,7 +671,7 @@ DownloadList::confirm_finished(Download* download) {
   //
   // TODO: Add a check when setting the flags to see if the torrent is
   // being hashed.
-  download->set_resume_flags(~uint32_t());
+  download->set_resume_flags(Download::default_resume_flags);
 
   if (!download->is_active() && rpc::call_command_value("d.state", rpc::make_target(download)) == 1)
     resume(download,
@@ -683,8 +687,10 @@ DownloadList::process_meta_download(Download* download) {
   rpc::call_command("d.stop", torrent::Object(), rpc::make_target(download));
   rpc::call_command("d.close", torrent::Object(), rpc::make_target(download));
 
-  std::string metafile = (*download->file_list()->begin())->frozen_path();
+  std::string  metafile = (*download->file_list()->begin())->frozen_path().str();
+
   std::fstream file(metafile.c_str(), std::ios::in | std::ios::binary);
+
   if (!file.is_open()) {
     lt_log_print(torrent::LOG_TORRENT_ERROR, "Could not read download metadata.");
     return;
@@ -692,11 +698,13 @@ DownloadList::process_meta_download(Download* download) {
 
   torrent::Object* bencode = new torrent::Object(torrent::Object::create_map());
   file >> bencode->insert_key("info", torrent::Object());
+
   if (file.fail()) {
     delete bencode;
     lt_log_print(torrent::LOG_TORRENT_ERROR, "Could not create download, the input is not a valid torrent.");
     return;
   }
+
   file.close();
 
   // Steal the keys we still need. The old download has no use for them.
@@ -707,6 +715,7 @@ DownloadList::process_meta_download(Download* download) {
     bencode->insert_key("announce-list", torrent::Object()).swap(download->bencode()->get_key("announce-list"));
 
   erase_ptr(download);
+
   control->core()->try_create_download_from_meta_download(bencode, metafile);
 }
 

src/core/http_queue.cc

@@ -9,17 +9,21 @@
 namespace core {
 
 HttpQueue::iterator
-HttpQueue::insert(const std::string& url, std::shared_ptr<std::ostream> stream) {
+HttpQueue::insert(const std::string& url, std::shared_ptr<std::ostream> stream,
+                  std::function<void()> done_fn, std::function<void(const std::string&)> failed_fn) {
   auto itr = base_type::insert(end(), torrent::net::HttpGet(url, stream));
 
+  itr->set_max_file_size(15 << 20);
+  itr->set_redirect_only_http_https();
+
   for (auto& slot : m_signal_insert)
     slot(*itr);
 
-  itr->add_done_slot([this, itr]() { erase(itr); });
-  itr->add_failed_slot([this, itr](auto) { erase(itr); });
+  itr->add_done_slot(torrent::this_thread::thread(),   std::move(done_fn));
+  itr->add_done_slot(torrent::this_thread::thread(),   [this, itr]() { erase(itr); });
 
-  // TODO: Downloading http torrents doesn't seem to work.
-  // TODO: Quitting no longer works.
+  itr->add_failed_slot(torrent::this_thread::thread(), std::move(failed_fn));
+  itr->add_failed_slot(torrent::this_thread::thread(), [this, itr](auto) { erase(itr); });
 
   torrent::net_thread::http_stack()->start_get(*itr);
 

src/core/http_queue.h

@@ -39,7 +39,8 @@ public:
   //
   // Consider adding a flag to indicate whetever HttpQueue should
   // delete the stream.
-  iterator    insert(const std::string& url, std::shared_ptr<std::ostream> stream);
+  iterator    insert(const std::string& url, std::shared_ptr<std::ostream> stream,
+                     std::function<void()> done_fn, std::function<void(const std::string&)> failed_fn);
   void        erase(iterator itr);
 
   void        clear();

src/core/manager.cc

@@ -8,10 +8,9 @@
 #include <sstream>
 #include <unistd.h>
 #include <sys/select.h>
-#include <rak/regex.h>
+#include <fnmatch.h>
 #include <torrent/utils/resume.h>
 #include <torrent/object.h>
-#include <torrent/connection_manager.h>
 #include <torrent/exceptions.h>
 #include <torrent/object_stream.h>
 #include <torrent/throttle.h>
@@ -34,6 +33,8 @@
 #include "core/http_queue.h"
 #include "core/view.h"
 
+#include <torrent/runtime/client_config.h>
+
 namespace core {
 
 const int Manager::create_start;
@@ -87,10 +88,10 @@ Manager::set_hashing_view(View* v) {
   m_hashingView->signal_changed().push_back(std::bind(&Manager::receive_hashing_changed, this));
 }
 
-torrent::ThrottlePair
+ThrottlePair
 Manager::get_throttle(const std::string& name) {
-  ThrottleMap::const_iterator itr = m_throttles.find(name);
-  torrent::ThrottlePair throttles = (itr == m_throttles.end() ? torrent::ThrottlePair(nullptr, nullptr) : itr->second);
+  auto itr       = m_throttles.find(name);
+  auto throttles = (itr == m_throttles.end() ? ThrottlePair(nullptr, nullptr) : itr->second);
 
   if (throttles.first == nullptr)
     throttles.first = torrent::up_throttle_global();
@@ -101,20 +102,6 @@ Manager::get_throttle(const std::string& name) {
   return throttles;
 }
 
-void
-Manager::set_address_throttle(uint32_t begin, uint32_t end, torrent::ThrottlePair throttles) {
-  m_addressThrottles.set_merge(begin, end, throttles);
-  torrent::connection_manager()->address_throttle() = std::bind(&core::Manager::get_address_throttle, control->core(), std::placeholders::_1);
-}
-
-torrent::ThrottlePair
-Manager::get_address_throttle(const sockaddr* addr) {
-  if (addr->sa_family != AF_INET)
-    return torrent::ThrottlePair(nullptr, nullptr);
-
-  return m_addressThrottles.get(ntohl(reinterpret_cast<const sockaddr_in*>(addr)->sin_addr.s_addr), torrent::ThrottlePair(nullptr, nullptr));
-}
-
 int64_t
 Manager::retrieve_throttle_value(const torrent::Object::string_type& name, bool rate, bool up) {
   ThrottleMap::iterator itr = throttles().find(name);
@@ -166,76 +153,12 @@ Manager::cleanup() {
 
 void
 Manager::shutdown(bool force) {
-  if (!force)
+  if (!force) {
     for (auto d : *m_download_list)
       m_download_list->pause_default(d);
-  else
+  } else {
     for (auto d : *m_download_list)
       m_download_list->close_quick(d);
-}
-
-void
-Manager::listen_open() {
-  // This stuff really should be moved outside of manager, make it
-  // part of the init script.
-  if (!rpc::call_command_value("network.port_open"))
-    return;
-
-  int portFirst, portLast;
-  torrent::Object portRange = rpc::call_command("network.port_range");
-
-  if (!portRange.is_string())
-    throw torrent::input_error("Invalid port_range argument type.");
-
-  if (std::sscanf(portRange.as_string().c_str(), "%i-%i", &portFirst, &portLast) != 2)
-    throw torrent::input_error("Invalid port_range argument.");
-
-  if (portFirst > portLast || portLast >= (1 << 16))
-    throw torrent::input_error("Invalid port range.");
-
-  if (rpc::call_command_value("network.port_random")) {
-    int boundary = portFirst + random() % (portLast - portFirst + 1);
-
-    if (torrent::runtime::network_manager()->listen_open(boundary, portLast) ||
-        torrent::runtime::network_manager()->listen_open(portFirst, boundary))
-      return;
-
-  } else {
-    if (torrent::runtime::network_manager()->listen_open(portFirst, portLast))
-      return;
-  }
-
-  throw torrent::input_error("Could not open/bind port for listening: " + std::string(std::strerror(errno)));
-}
-
-void
-Manager::set_proxy_address(const std::string& addr) {
-  int port;
-  torrent::sa_unique_ptr sa;
-
-  std::string buf(addr.length() + 1, '\0');
-
-  int err = std::sscanf(addr.c_str(), "%[^:]:%i", buf.data(), &port);
-
-  if (err <= 0)
-    throw torrent::input_error("Could not parse proxy address.");
-
-  if (err == 1)
-    port = 80;
-
-  try {
-    sa = torrent::sa_copy(torrent::sa_lookup_address(buf, AF_INET).get());
-
-  } catch (torrent::input_error& e) {
-    throw torrent::input_error("Could not resolve proxy address: " + std::string(e.what()));
-  }
-
-  try {
-    torrent::sa_set_port(sa.get(), port);
-    torrent::runtime::network_config()->set_proxy_address(sa.get());
-
-  } catch (torrent::input_error& e) {
-    throw e;
   }
 }
 
@@ -407,9 +330,9 @@ path_expand(std::vector<std::string>* paths, const std::string& pattern) {
   // Might be an idea to use depth-first search instead.
 
   for (; first != last; ++first) {
-    rak::regex r(*first);
+    const std::string& pattern = *first;
 
-    if (r.pattern().empty())
+    if (pattern.empty())
       continue;
 
     // Special case for ".."?
@@ -417,8 +340,8 @@ path_expand(std::vector<std::string>* paths, const std::string& pattern) {
     for (auto& itr : currentCache) {
       // Only include filenames starting with '.' if the pattern
       // starts with the same.
-      itr.update((r.pattern()[0] != '.') ? utils::Directory::update_hide_dot : 0);
-      itr.erase(std::remove_if(itr.begin(), itr.end(), [r](const utils::directory_entry& entry) { return !r(entry.s_name); }), itr.end());
+      itr.update((pattern[0] != '.') ? utils::Directory::update_hide_dot : 0);
+      itr.erase(std::remove_if(itr.begin(), itr.end(), [&pattern](const utils::directory_entry& entry) { return fnmatch(pattern.c_str(), entry.s_name.c_str(), 0) != 0; }), itr.end());
 
       for (const auto& cache : itr)
         nextCache.push_back(path_expand_transform(itr.path() + (itr.path() == "/" ? "" : "/"), cache));
@@ -513,6 +436,7 @@ Manager::receive_hashing_changed() {
 
       } else {
         (*itr)->set_hash_failed(true);
+        (*itr)->set_message("Hashing failed: " + std::string(e.what()));
         lt_log_print(torrent::LOG_TORRENT_ERROR, "Hashing failed: %s", e.what());
       }
     }

src/core/manager.h

@@ -5,7 +5,6 @@
 #include <memory>
 #include <vector>
 #include <torrent/utils/log_buffer.h>
-#include <torrent/connection_manager.h>
 #include <torrent/object.h>
 
 #include "download_list.h"
@@ -23,7 +22,8 @@ namespace core {
 
 class HttpQueue;
 
-typedef std::map<std::string, torrent::ThrottlePair> ThrottleMap;
+using ThrottlePair = std::pair<torrent::Throttle*, torrent::Throttle*>;
+using ThrottleMap  =  std::map<std::string, ThrottlePair>;
 
 class View;
 
@@ -37,32 +37,24 @@ public:
 
   bool                is_download_shutdown_completed();
 
-  DownloadList*       download_list()                     { return m_download_list.get(); }
-  FileStatusCache*    file_status_cache()                 { return m_file_status_cache.get(); }
+  DownloadList*       download_list()                   { return m_download_list.get(); }
+  FileStatusCache*    file_status_cache()               { return m_file_status_cache.get(); }
 
-  HttpQueue*          http_queue()                        { return m_http_queue.get(); }
+  HttpQueue*          http_queue()                      { return m_http_queue.get(); }
 
-  View*               hashing_view()                      { return m_hashingView; }
+  View*               hashing_view()                    { return m_hashingView; }
   void                set_hashing_view(View* v);
 
-  torrent::log_buffer* log_important()                    { return m_log_important.get(); }
-  torrent::log_buffer* log_complete()                     { return m_log_complete.get(); }
+  auto*               log_important()                   { return m_log_important.get(); }
+  auto*               log_complete()                    { return m_log_complete.get(); }
 
-  ThrottleMap&          throttles()                       { return m_throttles; }
-  torrent::ThrottlePair get_throttle(const std::string& name);
+  ThrottleMap&        throttles()                       { return m_throttles; }
+  ThrottlePair        get_throttle(const std::string& name);
 
   int64_t             retrieve_throttle_value(const torrent::Object::string_type& name, bool rate, bool up);
 
-  // Use custom throttle for the given range of IP addresses.
-  void                  set_address_throttle(uint32_t begin, uint32_t end, torrent::ThrottlePair throttles);
-  torrent::ThrottlePair get_address_throttle(const sockaddr* addr);
-
   void                cleanup();
 
-  void                listen_open();
-
-  void                set_proxy_address(const std::string& addr);
-
   const std::string&  magnet_path();
   void                set_magnet_path(const std::string& path);
 
@@ -87,8 +79,6 @@ public:
   void                try_create_download_from_meta_download(torrent::Object* bencode, const std::string& metafile);
 
 private:
-  typedef RangeMap<uint32_t, torrent::ThrottlePair> AddressThrottleMap;
-
   void                create_http(const std::string& uri);
   void                create_final(std::istream* s);
 
@@ -104,7 +94,6 @@ private:
   View*               m_hashingView{};
 
   ThrottleMap         m_throttles;
-  AddressThrottleMap  m_addressThrottles;
 
   torrent::log_buffer_ptr m_log_important;
   torrent::log_buffer_ptr m_log_complete;

src/core/view.h

@@ -18,7 +18,7 @@
 #include <string>
 #include <vector>
 #include <torrent/object.h>
-#include <torrent/utils/scheduler.h>
+#include <torrent/system/scheduler.h>
 
 #include "globals.h"
 
@@ -153,8 +153,8 @@ private:
 
   std::chrono::microseconds m_last_changed{};
 
-  signal_void                    m_signal_changed;
-  torrent::utils::SchedulerEntry m_delay_changed;
+  signal_void                     m_signal_changed;
+  torrent::system::SchedulerEntry m_delay_changed;
 };
 
 } // namespace core

src/display/attributes.h

@@ -4,7 +4,9 @@
 #include <string>
 #include <vector>
 
-#if defined(HAVE_NCURSESW_CURSES_H)
+#if defined(HAVE_NO_NCURSES)
+#include "curses_stub.h"
+#elif defined(HAVE_NCURSESW_CURSES_H)
 #include <ncursesw/curses.h>
 #elif defined(HAVE_NCURSESW_H)
 #include <ncursesw.h>

src/display/canvas.h

@@ -132,8 +132,7 @@ Canvas::resize_term(std::pair<int, int> dim) {
 
 inline unsigned int
 Canvas::get_x() {
-  int x;
-  [[maybe_unused]] int y;
+  [[maybe_unused]] int x, y;
   if (!m_daemon) {
     getyx(m_window, y, x);
   } else {
@@ -144,7 +143,7 @@ Canvas::get_x() {
 
 inline unsigned int
 Canvas::get_y() {
-  int x, y;
+  [[maybe_unused]] int x, y;
   if (!m_daemon) {
     getyx(m_window, y, x);
   } else {
@@ -155,8 +154,7 @@ Canvas::get_y() {
 
 inline unsigned int
 Canvas::width() {
-  int x;
-  [[maybe_unused]] int y;
+  [[maybe_unused]] int x, y;
   if (!m_daemon) {
     getmaxyx(m_window, y, x);
   } else {
@@ -167,7 +165,7 @@ Canvas::width() {
 
 inline unsigned int
 Canvas::height() {
-  int x, y;
+  [[maybe_unused]] int x, y;
   if (!m_daemon) {
     getmaxyx(m_window, y, x);
   } else {
@@ -257,8 +255,7 @@ Canvas::set_default_attributes(int attr) {
 
 inline int
 Canvas::get_screen_width() {
-  int x;
-  [[maybe_unused]] int y;
+  [[maybe_unused]] int x, y;
   if (!m_daemon) {
     getmaxyx(stdscr, y, x);
   } else {
@@ -269,7 +266,7 @@ Canvas::get_screen_width() {
 
 inline int
 Canvas::get_screen_height() {
-  int x, y;
+  [[maybe_unused]] int x, y;
   if (!m_daemon) {
     getmaxyx(stdscr, y, x);
   } else {

src/display/color_map.h

@@ -4,7 +4,11 @@
 #include <array>
 #include <map>
 
+#if defined(HAVE_NO_NCURSES)
+#include "curses_stub.h"
+#else
 #include <curses.h>
+#endif
 
 namespace display {
 

src/display/curses_stub.cc

@@ -0,0 +1,6 @@
+// Dummy ncurses stub: provides the stdscr symbol expected by the codebase.
+
+#include "curses_stub.h"
+
+// Define stdscr as a null pointer; all ncurses calls are no-ops in this stub.
+WINDOW* stdscr = nullptr;

src/display/curses_stub.h

@@ -0,0 +1,108 @@
+// Dummy ncurses stub header for building rtorrent without ncurses.
+// Provides types, macros, and no-op function stubs so the codebase
+// compiles without a real curses library. All display functions become
+// no-ops; use with system.daemon.set = true.
+
+#ifndef RTORRENT_DISPLAY_CURSES_STUB_H
+#define RTORRENT_DISPLAY_CURSES_STUB_H
+
+#include <cstdarg>
+#include <cstdio>
+#include <cstddef>
+
+// Opaque window type
+typedef void* WINDOW;
+
+// Character type used by curses
+typedef unsigned int chtype;
+typedef unsigned int attr_t;
+
+// The standard screen
+extern WINDOW* stdscr;
+
+// Boolean constants and return codes
+#ifndef TRUE
+#define TRUE 1
+#endif
+#ifndef FALSE
+#define FALSE 0
+#endif
+#ifndef ERR
+#define ERR (-1)
+#endif
+
+// Attribute constants
+#define A_NORMAL   0
+#define A_STANDOUT (1U << 8)
+#define A_UNDERLINE (1U << 9)
+#define A_REVERSE  (1U << 10)
+#define A_BLINK    (1U << 11)
+#define A_DIM      (1U << 12)
+#define A_BOLD     (1U << 13)
+
+// Color support
+#define COLORS 0
+#define COLOR_BLACK   0
+#define COLOR_RED     1
+#define COLOR_GREEN   2
+#define COLOR_YELLOW  3
+#define COLOR_BLUE    4
+#define COLOR_MAGENTA 5
+#define COLOR_CYAN    6
+#define COLOR_WHITE   7
+
+#define COLOR_PAIR(n) 0
+
+// Key constants
+#define KEY_DOWN        0x102
+#define KEY_UP          0x103
+#define KEY_LEFT        0x104
+#define KEY_RIGHT       0x105
+#define KEY_HOME        0x106
+#define KEY_BACKSPACE   0x107
+#define KEY_DC          0x14a
+#define KEY_ENTER       0x157
+#define KEY_NPAGE       0x152
+#define KEY_PPAGE       0x153
+#define KEY_END         0x168
+#define KEY_MOUSE       0x199
+#define KEY_RESIZE      0x19a
+
+// Stubbed functions
+inline WINDOW* initscr() { return nullptr; }
+inline int     endwin() { return 0; }
+inline WINDOW* newwin(int, int, int, int) { return nullptr; }
+inline int     delwin(WINDOW*) { return 0; }
+inline int     wresize(WINDOW*, int, int) { return 0; }
+inline int     mvwin(WINDOW*, int, int) { return 0; }
+inline int     wnoutrefresh(WINDOW*) { return 0; }
+inline int     redrawwin(WINDOW*) { return 0; }
+inline int     werase(WINDOW*) { return 0; }
+inline int     wmove(WINDOW*, int, int) { return 0; }
+inline int     vw_printw(WINDOW*, char*, va_list) { return 0; }
+inline int     waddch(WINDOW*, const chtype) { return 0; }
+inline int     mvwaddch(WINDOW*, int, int, const chtype) { return 0; }
+inline int     mvwchgat(WINDOW*, int, int, int, attr_t, short, const void*) { return 0; }
+inline int     wattrset(WINDOW*, int) { return 0; }
+inline int     wattr_get(WINDOW*, attr_t*, short*, void*) { return 0; }
+inline int     wattr_set(WINDOW*, attr_t, short, void*) { return 0; }
+inline int     doupdate() { return 0; }
+inline int     start_color() { return 0; }
+inline int     use_default_colors() { return 0; }
+inline int     raw() { return 0; }
+inline int     noraw() { return 0; }
+inline int     noecho() { return 0; }
+inline int     nodelay(WINDOW*, bool) { return 0; }
+inline int     keypad(WINDOW*, bool) { return 0; }
+inline int     curs_set(int) { return 0; }
+inline int     init_pair(short, short, short) { return 0; }
+inline int     pair_content(short, short*, short*) { return 0; }
+inline int     resizeterm(int, int) { return 0; }
+inline int     getch() { return ERR; }
+inline int     set_escdelay(int) { return 0; }
+
+// getyx / getmaxyx are macros in real ncurses; stub them as no-ops
+#define getyx(w, y, x)     do { (y) = 0; (x) = 0; } while (0)
+#define getmaxyx(w, y, x)  do { (y) = 24; (x) = 80; } while (0)
+
+#endif // RTORRENT_DISPLAY_CURSES_STUB_H

src/display/manager.cc

@@ -80,10 +80,14 @@ Manager::schedule_update(std::chrono::microseconds min_interval) {
     return;
   }
 
-  if (m_task_update.is_scheduled() && m_task_update.time() <= m_scheduler.front()->time())
+  auto cached = torrent::this_thread::cached_time();
+  m_scheduler.external_set_cached_time(cached);
+  auto next = cached + m_scheduler.next_timeout(cached);
+
+  if (m_task_update.is_scheduled() && m_task_update.time_or_zero() <= next)
     return;
 
-  torrent::this_thread::scheduler()->update_wait_until(&m_task_update, std::max(m_scheduler.front()->time(), m_time_last_update + min_interval));
+  torrent::this_thread::scheduler()->update_wait_until(&m_task_update, std::max(next, m_time_last_update + min_interval));
 }
 
 }

src/display/manager.h

@@ -1,7 +1,7 @@
 #ifndef RTORRENT_DISPLAY_MANAGER_H
 #define RTORRENT_DISPLAY_MANAGER_H
 
-#include <torrent/utils/scheduler.h>
+#include <torrent/system/scheduler.h>
 
 #include "display/frame.h"
 
@@ -31,9 +31,9 @@ private:
   bool                m_force_redraw{false};
   Frame               m_root_frame;
 
-  std::chrono::microseconds         m_time_last_update{};
-  torrent::utils::ExternalScheduler m_scheduler;
-  torrent::utils::SchedulerEntry    m_task_update;
+  std::chrono::microseconds          m_time_last_update{};
+  torrent::system::ExternalScheduler m_scheduler;
+  torrent::system::SchedulerEntry    m_task_update;
 };
 
 }

src/display/utils.cc

@@ -155,7 +155,7 @@ print_download_status(char* first, char* last, core::Download* d) {
 
   } else if (d->tracker_controller().has_active_trackers_not_scrape()) {
     auto tracker = d->tracker_controller().find_if([](const auto& t) {
-      return t.is_busy_not_scrape();
+      return t.is_requesting_not_scrape();
     });
 
     if (tracker.is_valid()) {

src/display/window.h

@@ -2,7 +2,7 @@
 #define RTORRENT_WINDOW_BASE_H
 
 #include <functional>
-#include <torrent/utils/scheduler.h>
+#include <torrent/system/scheduler.h>
 #include <torrent/system/thread.h>
 
 #include "canvas.h"
@@ -99,7 +99,7 @@ protected:
   extent_type         m_max_width;
   extent_type         m_max_height;
 
-  torrent::utils::SchedulerEntry m_task_update;
+  torrent::system::SchedulerEntry m_task_update;
 };
 
 // Return a range with a distance of no more than __distance and

src/display/window_file_list.cc

@@ -135,8 +135,11 @@ WindowFileList::redraw() {
       m_canvas->print(0, pos, "%*c%-*s", 16, ' ', filenameWidth, "EMPTY");
 
     } else if (itr.is_entering()) {
-      m_canvas->print(0, pos, "%*c %ls", 16 + itr.depth(), '\\',
-                      itr.depth() < itr.file()->path()->size() ? wstring_width(itr.file()->path()->at(itr.depth()), filenameWidth - itr.depth() - 1).c_str() : L"UNKNOWN");
+      if (itr.depth() < itr.file()->path()->size())
+        m_canvas->print(0, pos, "%*c %ls", 16 + itr.depth(), '\\',
+                        wstring_width(itr.file()->path()->at(itr.depth()).str(), filenameWidth - itr.depth() - 1).c_str());
+      else
+        m_canvas->print(0, pos, "%*c %ls", 16 + itr.depth(), '\\', L"UNKNOWN");
 
     } else if (itr.is_leaving()) {
       m_canvas->print(0, pos, "%*c %-*s", 16 + (itr.depth() - 1), '/', filenameWidth - (itr.depth() - 1), "");
@@ -166,8 +169,12 @@ WindowFileList::redraw() {
       else
         m_canvas->print(8, pos, "%5.1f T", (double)val / (int64_t(1) << 40));
 
-      m_canvas->print(15, pos, "%*c %ls", 1 + itr.depth(), '|',
-                      itr.depth() < itr.file()->path()->size() ? wstring_width(itr.file()->path()->at(itr.depth()), filenameWidth - itr.depth() - 1).c_str() : L"UNKNOWN");
+      if (itr.depth() < itr.file()->path()->size())
+        m_canvas->print(15, pos, "%*c %ls", 1 + itr.depth(), '|',
+                        wstring_width(itr.file()->path()->at(itr.depth()).str(), filenameWidth - itr.depth() - 1).c_str());
+      else
+        m_canvas->print(15, pos, "%*c %ls", 1 + itr.depth(), '|', L"UNKNOWN");
+
 
     } else {
       m_canvas->print(0, pos, "BORK BORK");

src/display/window_http_queue.h

@@ -47,7 +47,7 @@ private:
   signal_curl_get::iterator m_conn_insert;
   signal_curl_get::iterator m_conn_erase;
 
-  torrent::utils::SchedulerEntry m_task_deactivate;
+  torrent::system::SchedulerEntry m_task_deactivate;
 };
 
 }

src/display/window_log.cc

@@ -2,6 +2,7 @@
 
 #include <ctime>
 #include <torrent/torrent.h>
+#include <torrent/system/callbacks.h>
 #include <torrent/system/thread.h>
 
 #include "canvas.h"
@@ -14,16 +15,18 @@ WindowLog::WindowLog(torrent::log_buffer* l) :
   Window(new Canvas, 0, 0, 0, extent_full, extent_static),
   m_log(l) {
 
-  m_task_update.slot() = std::bind(&WindowLog::receive_update, this);
+  m_task_update.slot() = [this]() { receive_update(); };
 
-  unsigned int signal_index = torrent::main_thread::thread()->signal_bitfield()->add_signal(std::bind(&WindowLog::receive_update, this));
+  m_log->lock_and_set_update_slot([this]() {
+      if (m_log_updating.exchange(true) == true)
+        return;
 
-  m_log->lock_and_set_update_slot([signal_index]() {
-    torrent::main_thread::thread()->send_event_signal(signal_index, false);
-  });
+      torrent::main_thread::callback([this]() { receive_update(); });
+    });
 }
 
 WindowLog::~WindowLog() {
+  m_log->lock_and_set_update_slot(nullptr);
   torrent::this_thread::scheduler()->erase(&m_task_update);
 }
 
@@ -52,11 +55,13 @@ WindowLog::redraw() {
 // gets updated.
 void
 WindowLog::receive_update() {
+  m_log_updating = false;
+
   if (!is_active())
     return;
 
-  iterator itr = find_older();
-  extent_type height = std::min(std::distance(itr, (iterator)m_log->end()), (std::iterator_traits<iterator>::difference_type)10);
+  auto itr    = find_older();
+  auto height = std::min(std::distance(itr, (iterator)m_log->end()), (std::iterator_traits<iterator>::difference_type)10);
 
   if (height != m_max_height) {
     m_min_height = height != 0 ? 1 : 0;

src/display/window_log.h

@@ -1,8 +1,8 @@
 #ifndef RTORRENT_DISPLAY_WINDOW_LOG_H
 #define RTORRENT_DISPLAY_WINDOW_LOG_H
 
+#include <torrent/system/scheduler.h>
 #include <torrent/utils/log_buffer.h>
-#include <torrent/utils/scheduler.h>
 
 #include "window.h"
 
@@ -22,8 +22,12 @@ public:
 private:
   inline iterator     find_older();
 
-  torrent::log_buffer*           m_log;
-  torrent::utils::SchedulerEntry m_task_update;
+  torrent::log_buffer*            m_log;
+  torrent::system::SchedulerEntry m_task_update;
+
+  align_cacheline
+
+  std::atomic<bool>   m_log_updating{};
 };
 
 }

src/display/window_tracker_list.cc

@@ -51,9 +51,9 @@ WindowTrackerList::redraw() {
     if (pos < m_canvas->height()) {
       const char* state;
 
-      if (tracker.is_busy_not_scrape())
+      if (tracker.is_requesting_not_scrape())
         state = "req ";
-      else if (tracker.is_busy())
+      else if (tracker.is_requesting())
         state = "scr ";
       else
         state = "    ";
@@ -79,7 +79,7 @@ WindowTrackerList::redraw() {
       m_canvas->set_attr(4, pos - 1, m_canvas->width(), is_focused() ? A_REVERSE : A_BOLD, COLOR_PAIR(0));
     }
 
-    if (tracker.is_busy()) {
+    if (tracker.is_requesting()) {
       m_canvas->set_attr(0, pos - 2, 4, A_REVERSE, COLOR_PAIR(0));
       m_canvas->set_attr(0, pos - 1, 4, A_REVERSE, COLOR_PAIR(0));
     }

src/globals.h

@@ -25,13 +25,11 @@ namespace scgi_thread {
 torrent::system::Thread* thread();
 std::thread::id          thread_id();
 
-void                    callback(void* target, std::function<void ()>&& fn);
-void                    cancel_callback(void* target);
-void                    cancel_callback_and_wait(void* target);
+void                     callback_interrupt(torrent::system::callback_id& id, std::function<void ()>&& fn);
 
-rpc::SCgi*              scgi();
-void                    set_scgi(rpc::SCgi* scgi);
-void                    set_rpc_log(const std::string& filename);
+rpc::SCgi*               scgi();
+void                     set_scgi(rpc::SCgi* scgi);
+void                     set_rpc_log(const std::string& filename);
 
 } // namespace torrent::scgi_thread
 
@@ -41,9 +39,9 @@ namespace session_thread {
 torrent::system::Thread* thread();
 std::thread::id          thread_id();
 
-void                    callback(void* target, std::function<void ()>&& fn);
-void                    cancel_callback(void* target);
-void                    cancel_callback_and_wait(void* target);
+void                     callback(std::function<void ()>&& fn);
+void                     callback(torrent::system::callback_id& id, std::function<void ()>&& fn);
+void                     cancel_callback(torrent::system::callback_id& id);
 
 session::SessionManager* manager();
 std::string              session_path();

src/input/input_event.cc

@@ -2,20 +2,26 @@
 
 #include "input_event.h"
 
+#include <torrent/common.h>
+#include <torrent/system/poll.h>
+
 #include "display/attributes.h"
 
 namespace input {
 
 void
-InputEvent::insert(torrent::net::Poll* p) {
-  p->open(this);
-  p->insert_read(this);
+InputEvent::insert() {
+  torrent::this_thread::poll()->open(this);
+  torrent::this_thread::poll()->insert_read(this);
 }
 
 void
-InputEvent::remove(torrent::net::Poll* p) {
-  p->remove_read(this);
-  p->close(this);
+InputEvent::remove() {
+  if (!is_open())
+    return;
+
+  torrent::this_thread::poll()->remove_and_close(this);
+  set_file_descriptor(-1);
 }
 
 void
@@ -32,6 +38,8 @@ InputEvent::event_write() {
 
 void
 InputEvent::event_error() {
+  torrent::this_thread::poll()->remove_and_close(this);
+  set_file_descriptor(-1);
 }
 
 }

src/input/input_event.h

@@ -2,22 +2,20 @@
 #define RTORRENT_INPUT_INPUT_EVENT_H
 
 #include <functional>
-
-#include <torrent/event.h>
-#include <torrent/net/poll.h>
+#include <torrent/system/event.h>
 
 namespace input {
 
-class InputEvent : public torrent::Event {
+class InputEvent : public torrent::system::Event {
 public:
   typedef std::function<void (int)> slot_int;
 
-  InputEvent(int fd) { m_fileDesc = fd; }
+  InputEvent(int fd) { set_file_descriptor(fd); }
 
   const char*         type_name() const override { return "input"; }
 
-  void                insert(torrent::net::Poll* p);
-  void                remove(torrent::net::Poll* p);
+  void                insert();
+  void                remove();
 
   void                event_read() override;
   void                event_write() override;

src/main.cc

@@ -11,6 +11,9 @@
 #include <torrent/exceptions.h>
 #include <torrent/data/chunk_utils.h>
 #include <torrent/net/fd.h>
+#include <torrent/net/http_stack.h>
+#include <torrent/runtime/memory_manager.h>
+#include <torrent/runtime/runtime.h>
 #include <torrent/utils/chrono.h>
 #include <torrent/utils/log.h>
 
@@ -112,7 +115,16 @@ main(int argc, char** argv) {
     // TODO: Create a fake thread object for initializing other processes and enabling logging.
     torrent::initialize_main_thread();
 
-    SignalHandler::set_ignore(SIGPIPE);
+    // Block SIGCHLD until all threads are created, then unblock on main-thread, to avoid SIGCHLD
+    // interrupting other threads.
+    //
+    // This means only main-thread can fork and wait for child processes.
+
+    SignalHandler::set_block(SIGALRM);
+    SignalHandler::set_block(SIGPIPE);
+    SignalHandler::set_block(SIGCHLD);
+
+    // All signal handlers must restore errno if they return.
     SignalHandler::set_handler(SIGSEGV,  std::bind(&do_panic, SIGSEGV));
     SignalHandler::set_handler(SIGILL,   std::bind(&do_panic, SIGILL));
     SignalHandler::set_handler(SIGFPE,   std::bind(&do_panic, SIGFPE));
@@ -140,18 +152,8 @@ main(int argc, char** argv) {
 
     SignalHandler::set_sigaction_handler(SIGBUS, &handle_sigbus);
 
-    // SIGUSR1 is used for interrupting polling, forcing the target
-    // thread to process new non-socket events.
-    //
-    // LibTorrent uses sockets for this purpose on Solaris and other
-    // platforms that do not properly pass signals to the target
-    // threads. Use '--enable-interrupt-socket' when configuring
-    // LibTorrent to enable this workaround.
-    if (torrent::system::Thread::should_handle_sigusr1())
-      SignalHandler::set_handler(SIGUSR1, []() {});
-
-    torrent::log_add_group_output(torrent::LOG_NOTICE,    "important");
-    torrent::log_add_group_output(torrent::LOG_DHT_ERROR, "important");
+    torrent::log_add_group_output(torrent::LOG_NOTICE,         "important");
+    torrent::log_add_group_output(torrent::LOG_DHT_ERROR,      "important");
 
     torrent::log_add_group_output(torrent::LOG_INFO,           "complete");
     torrent::log_add_group_output(torrent::LOG_DHT_ERROR,      "complete");
@@ -165,6 +167,8 @@ main(int argc, char** argv) {
     scgi::ThreadScgi::create_thread();
     session::ThreadSession::create_thread();
 
+    SignalHandler::set_unblock(SIGCHLD);
+
     // Initialize option handlers after libtorrent to ensure
     // torrent::ConnectionManager* are valid etc.
     initialize_commands();
@@ -290,14 +294,12 @@ main(int argc, char** argv) {
        "view.filter = leeching,((and,((d.state)),((not,((d.complete))))))\n"
        "view.filter_on = leeching,event.download.resumed,event.download.paused,event.download.finished\n"
 
-       "schedule2 = view.main,10,10,((view.sort,main,20))\n"
-       "schedule2 = view.name,10,10,((view.sort,name,20))\n"
+       "schedule = view.main,10,10,((view.sort,main,20))\n"
+       "schedule = view.name,10,10,((view.sort,name,20))\n"
 
-       "schedule2 = session_save,1200,1200,((session.save))\n"
-       "schedule2 = low_diskspace,5,60,((close_low_diskspace,500M))\n"
-       "schedule2 = prune_file_status,3600,86400,((system.file_status_cache.prune))\n"
-
-       "protocol.encryption.set=allow_incoming,prefer_plaintext,enable_retry\n"
+       "schedule = session_save,1200,1200,((session.save))\n"
+       "schedule = low_diskspace,5,60,((close_low_diskspace,500M))\n"
+       "schedule = prune_file_status,3600,86400,((system.file_status_cache.prune))\n"
 
        "ui.color.focus.set=reverse\n"
     );
@@ -305,101 +307,130 @@ main(int argc, char** argv) {
     // Functions that might not get depracted as they are nice for
     // configuration files, and thus might do with just some
     // cleanup.
-    CMD2_REDIRECT("upload_rate",           "throttle.global_up.max_rate.set_kb");
-    CMD2_REDIRECT("download_rate",         "throttle.global_down.max_rate.set_kb");
+    CMD_REDIRECT("upload_rate",           "throttle.global_up.max_rate.set_kb");
+    CMD_REDIRECT("download_rate",         "throttle.global_down.max_rate.set_kb");
 
-    CMD2_REDIRECT("ratio.enable",          "group.seeding.ratio.enable");
-    CMD2_REDIRECT("ratio.disable",         "group.seeding.ratio.disable");
-    CMD2_REDIRECT("ratio.min",             "group.seeding.ratio.min");
-    CMD2_REDIRECT("ratio.max",             "group.seeding.ratio.max");
-    CMD2_REDIRECT("ratio.upload",          "group.seeding.ratio.upload");
-    CMD2_REDIRECT("ratio.min.set",         "group.seeding.ratio.min.set");
-    CMD2_REDIRECT("ratio.max.set",         "group.seeding.ratio.max.set");
-    CMD2_REDIRECT("ratio.upload.set",      "group.seeding.ratio.upload.set");
+    CMD_REDIRECT("ratio.enable",          "group.seeding.ratio.enable");
+    CMD_REDIRECT("ratio.disable",         "group.seeding.ratio.disable");
+    CMD_REDIRECT("ratio.min",             "group.seeding.ratio.min");
+    CMD_REDIRECT("ratio.max",             "group.seeding.ratio.max");
+    CMD_REDIRECT("ratio.upload",          "group.seeding.ratio.upload");
+    CMD_REDIRECT("ratio.min.set",         "group.seeding.ratio.min.set");
+    CMD_REDIRECT("ratio.max.set",         "group.seeding.ratio.max.set");
+    CMD_REDIRECT("ratio.upload.set",      "group.seeding.ratio.upload.set");
 
-    CMD2_REDIRECT("encryption",            "protocol.encryption.set");
-    CMD2_REDIRECT("encoding_list",         "encoding.add");
+    CMD_REDIRECT("encryption",            "protocol.encryption.set");
 
-    CMD2_REDIRECT("connection_leech",      "protocol.connection.leech.set");
-    CMD2_REDIRECT("connection_seed",       "protocol.connection.seed.set");
+    CMD_REDIRECT("check_hash",            "pieces.hash.on_completion.set");
 
-    CMD2_REDIRECT("min_peers",             "throttle.min_peers.normal.set");
-    CMD2_REDIRECT("max_peers",             "throttle.max_peers.normal.set");
-    CMD2_REDIRECT("min_peers_seed",        "throttle.min_peers.seed.set");
-    CMD2_REDIRECT("max_peers_seed",        "throttle.max_peers.seed.set");
+    CMD_REDIRECT("connection_leech",      "protocol.connection.leech.set");
+    CMD_REDIRECT("connection_seed",       "protocol.connection.seed.set");
 
-    CMD2_REDIRECT("min_uploads",           "throttle.min_uploads.set");
-    CMD2_REDIRECT("max_uploads",           "throttle.max_uploads.set");
-    CMD2_REDIRECT("min_downloads",         "throttle.min_downloads.set");
-    CMD2_REDIRECT("max_downloads",         "throttle.max_downloads.set");
+    CMD_REDIRECT("min_peers",             "throttle.min_peers.normal.set");
+    CMD_REDIRECT("max_peers",             "throttle.max_peers.normal.set");
+    CMD_REDIRECT("min_peers_seed",        "throttle.min_peers.seed.set");
+    CMD_REDIRECT("max_peers_seed",        "throttle.max_peers.seed.set");
 
-    CMD2_REDIRECT("max_uploads_div",       "throttle.max_uploads.div.set");
-    CMD2_REDIRECT("max_uploads_global",    "throttle.max_uploads.global.set");
-    CMD2_REDIRECT("max_downloads_div",     "throttle.max_downloads.div.set");
-    CMD2_REDIRECT("max_downloads_global",  "throttle.max_downloads.global.set");
+    CMD_REDIRECT("min_uploads",           "throttle.min_uploads.set");
+    CMD_REDIRECT("max_uploads",           "throttle.max_uploads.set");
+    CMD_REDIRECT("min_downloads",         "throttle.min_downloads.set");
+    CMD_REDIRECT("max_downloads",         "throttle.max_downloads.set");
 
-    CMD2_REDIRECT("max_memory_usage",      "pieces.memory.max.set");
+    CMD_REDIRECT("max_uploads_div",       "throttle.max_uploads.div.set");
+    CMD_REDIRECT("max_uploads_global",    "throttle.max_uploads.global.set");
+    CMD_REDIRECT("max_downloads_div",     "throttle.max_downloads.div.set");
+    CMD_REDIRECT("max_downloads_global",  "throttle.max_downloads.global.set");
 
-    CMD2_REDIRECT("bind",                  "network.bind_address.set");
-    CMD2_REDIRECT("ip",                    "network.local_address.set");
-    CMD2_REDIRECT("port_range",            "network.port_range.set");
+    CMD_REDIRECT("directory",             "directory.default.set");
+    CMD_REDIRECT("session",               "session.path.set");
 
-    CMD2_REDIRECT("dht",                   "dht.mode.set");
+    CMD_REDIRECT_NO_EXPORT("port_range",  "network.listen.port.range.set");
+    CMD_REDIRECT_NO_EXPORT("scgi_port",   "network.scgi.open_port");
+    CMD_REDIRECT_NO_EXPORT("scgi_local",  "network.scgi.open_local");
 
-    CMD2_REDIRECT("port_random",           "network.port_random.set");
-    CMD2_REDIRECT("proxy_address",         "network.proxy_address.set");
+    CMD_REDIRECT("to_gm_time",            "convert.gm_time");
+    CMD_REDIRECT("to_gm_date",            "convert.gm_date");
+    CMD_REDIRECT("to_time",               "convert.time");
+    CMD_REDIRECT("to_date",               "convert.date");
+    CMD_REDIRECT("to_elapsed_time",       "convert.elapsed_time");
+    CMD_REDIRECT("to_kb",                 "convert.kb");
+    CMD_REDIRECT("to_mb",                 "convert.mb");
+    CMD_REDIRECT("to_xb",                 "convert.xb");
+    CMD_REDIRECT("to_throttle",           "convert.throttle");
 
-    CMD2_REDIRECT("scgi_port",             "network.scgi.open_port");
-    CMD2_REDIRECT("scgi_local",            "network.scgi.open_local");
+    // TODO: Deprecate these at some point a while after 1.1 release.
 
-    CMD2_REDIRECT("directory",             "directory.default.set");
-    CMD2_REDIRECT("session",               "session.path.set");
+    CMD_REDIRECT("d.multicall2",                   "d.multicall");
+    CMD_REDIRECT("network.open_sockets",           "system.sockets.size");
+    CMD_REDIRECT("network.max_open_sockets",       "system.sockets.max_size");
+    CMD_REDIRECT("network.max_open_sockets.set",   "system.sockets.max_size.set");
+    CMD_REDIRECT("network.http.proxy_address",     "network.proxy.http");
+    CMD_REDIRECT("network.http.proxy_address.set", "network.proxy.http.set");
 
-    CMD2_REDIRECT("check_hash",            "pieces.hash.on_completion.set");
+    rpc::rpc.mark_safe("d.multicall2");
+    rpc::rpc.mark_safe("network.max_open_sockets");
+    rpc::rpc.mark_safe("network.http.proxy_address");
 
-    CMD2_REDIRECT("key_layout",            "keys.layout.set");
+    CMD2_ANY_VALUE_V("network.http.max_total_connections.set", [](auto, auto) {
+        lt_log_print(torrent::LOG_WARN, "network.http.max_total_connections.set is deprecated, use system.sockets.http.min_alloc.set instead.");
+      });
 
-    CMD2_REDIRECT("to_gm_time",            "convert.gm_time");
-    CMD2_REDIRECT("to_gm_date",            "convert.gm_date");
-    CMD2_REDIRECT("to_time",               "convert.time");
-    CMD2_REDIRECT("to_date",               "convert.date");
-    CMD2_REDIRECT("to_elapsed_time",       "convert.elapsed_time");
-    CMD2_REDIRECT("to_kb",                 "convert.kb");
-    CMD2_REDIRECT("to_mb",                 "convert.mb");
-    CMD2_REDIRECT("to_xb",                 "convert.xb");
-    CMD2_REDIRECT("to_throttle",           "convert.throttle");
-
-    CMD2_REDIRECT("torrent_list_layout",   "ui.torrent_list.layout.set");
-
-    // Deprecate:
-
-    CMD2_VAR_STRING("dht.throttle.name",   "deprecated");
-    rpc::rpc.mark_safe("dht.throttle.name");
-
-    CMD2_REDIRECT("network.http.max_open",     "network.http.max_total_connections");
-    CMD2_REDIRECT("network.http.max_open.set", "network.http.max_total_connections.set");
-
-    // Deprecated commands. Don't use these anymore.
-    //
-    // It has been so long that we now re-create these commands with the new (old by now) command
-    // call style, where the first argument is the target.
+    CMD2_ANY_VALUE_V("network.max_open_files.set", [](auto, auto) {
+        lt_log_print(torrent::LOG_WARN, "network.max_open_files.set is deprecated, use system.sockets.files.min_alloc.set instead.");
+      });
 
     // if (rpc::call_command_value("method.use_intermediate") == 1) {
-    //   CMD2_REDIRECT("execute", "execute2");
-
-    //   CMD2_REDIRECT("schedule", "schedule2");
-    //   CMD2_REDIRECT("schedule_remove", "schedule_remove2");
 
     // } else if (rpc::call_command_value("method.use_intermediate") == 2) {
     //   Allow for use in config files, etc, just don't export it.
-    //   CMD2_REDIRECT_NO_EXPORT("execute", "execute2");
-
-    //   CMD2_REDIRECT_NO_EXPORT("schedule", "schedule2");
-    //   CMD2_REDIRECT_NO_EXPORT("schedule_remove", "schedule_remove2");
     // }
 
-    // if (rpc::call_command_value("method.use_deprecated") == 1) {
-    // }
+    if (rpc::call_command_value("method.use_deprecated") == 1) {
+      CMD_REDIRECT("execute2",         "execute");
+      CMD_REDIRECT("schedule2",        "schedule");
+      CMD_REDIRECT("schedule_remove2", "schedule.remove");
+
+      CMD_REDIRECT("bind",                  "network.bind_address.set");
+      CMD_REDIRECT("ip",                    "network.local_address.set");
+
+      // TODO: Check if dht is on by default.
+      CMD_REDIRECT("dht",                   "dht.mode.set");
+
+      CMD_REDIRECT("port_random",           "network.listen.port.random.set");
+      CMD_REDIRECT("proxy_address",         "network.proxy.http.set");
+
+      CMD_REDIRECT("key_layout",            "keys.layout.set");
+
+      CMD_REDIRECT("torrent_list_layout",   "ui.torrent_list.layout.set");
+
+      CMD2_VAR_STRING("dht.throttle.name",   "deprecated");
+      rpc::rpc.mark_safe("dht.throttle.name");
+
+      CMD_REDIRECT("network.http.max_open",     "network.http.max_total_connections");
+      CMD_REDIRECT("network.http.max_open.set", "network.http.max_total_connections.set");
+
+      // Users should check their setups to see if they need to modify their use of these options.
+      CMD_REDIRECT("max_memory_usage",      "pieces.memory.max.set");
+
+      CMD_ANY_LIST("throttle.ip", []( auto, auto) {
+          lt_log_print(torrent::LOG_WARN, "The 'throttle.ip' command is deprecated and does nothing.");
+          return torrent::Object();
+        });
+
+      CMD_ANY("network.port_open", [](auto, auto) {
+          lt_log_print(torrent::LOG_WARN, "The 'network.port_open' command is deprecated and does nothing.");
+          return torrent::Object();
+        });
+      CMD_ANY("network.port_open.set", [](auto, auto) {
+          lt_log_print(torrent::LOG_WARN, "The 'network.port_open.set' command is deprecated and does nothing.");
+          return torrent::Object();
+        });
+
+      CMD_REDIRECT("network.port_random",     "network.listen.port.random");
+      CMD_REDIRECT("network.port_random.set", "network.listen.port.random.set");
+      CMD_REDIRECT("network.port_range",      "network.listen.port.range");
+      CMD_REDIRECT("network.port_range.set",  "network.listen.port.range.set");
+    }
 
     {
       auto fd = torrent::fd_open_family(torrent::fd_flag_stream, AF_INET6);
@@ -426,20 +457,24 @@ main(int argc, char** argv) {
       });
 
     LT_LOG("seeded srandom and srand48 (seed:%u)", random_seed);
+    LT_LOG("max memory usage: %" PRIu64, torrent::runtime::memory_manager()->max_memory_usage());
 
     control->initialize();
     control->ui()->load_input_history();
 
-    // Load session torrents and perform scheduled tasks to ensure
-    // session torrents are loaded before arg torrents.
+    torrent::net_thread::http_stack()->set_user_agent(USER_AGENT);
+    torrent::runtime::initialize_network();
+
+    // Load session torrents and perform scheduled tasks to ensure session torrents are loaded
+    // before arg torrents.
+    control->dht_manager()->set_auto_if_untouched_and_has_session();
     control->dht_manager()->load_dht_cache();
 
     load_session_torrents(session_thread::manager()->path());
     load_arg_torrents(argv + firstArg, argv + argc);
 
-    // Make sure we update the display before any scheduled tasks can
-    // run, so that loading of torrents doesn't look like it hangs on
-    // startup.
+    // Make sure we update the display before any scheduled tasks can run, so that loading of
+    // torrents doesn't look like it hangs on startup.
     control->display()->adjust_layout();
     control->display()->receive_update();
 

src/rpc/command.cc

@@ -6,31 +6,31 @@
 #include "command.h"
 
 #define COMMAND_BASE_TEMPLATE_DEFINE(func_name) \
-template const torrent::Object func_name<target_type>(command_base* rawCommand, target_type target, const torrent::Object& args); \
-template const torrent::Object func_name<core::Download*>(command_base* rawCommand, target_type target, const torrent::Object& args); \
-template const torrent::Object func_name<torrent::Peer*>(command_base* rawCommand, target_type target, const torrent::Object& args); \
-template const torrent::Object func_name<torrent::tracker::Tracker*>(command_base* rawCommand, target_type target, const torrent::Object& args); \
-template const torrent::Object func_name<torrent::File*>(command_base* rawCommand, target_type target, const torrent::Object& args); \
-template const torrent::Object func_name<torrent::FileListIterator*>(command_base* rawCommand, target_type target, const torrent::Object& args);
+template const torrent::Object func_name<target_type>(command_base* command_raw, target_type target, const torrent::Object& args); \
+template const torrent::Object func_name<core::Download*>(command_base* command_raw, target_type target, const torrent::Object& args); \
+template const torrent::Object func_name<torrent::Peer*>(command_base* command_raw, target_type target, const torrent::Object& args); \
+template const torrent::Object func_name<torrent::tracker::Tracker*>(command_base* command_raw, target_type target, const torrent::Object& args); \
+template const torrent::Object func_name<torrent::File*>(command_base* command_raw, target_type target, const torrent::Object& args); \
+template const torrent::Object func_name<torrent::FileListIterator*>(command_base* command_raw, target_type target, const torrent::Object& args);
 
 namespace rpc {
 
 template <typename T> const torrent::Object
-command_base_call(command_base* rawCommand, target_type target, const torrent::Object& args) {
+command_base_call(command_base* command_raw, target_type target, const torrent::Object& args) {
   if (!is_target_compatible<T>(target))
-    throw torrent::input_error("Target of wrong type to command.");
+    throw torrent::input_error("Target of wrong type to generic command.");
 
-  return command_base::_call<typename command_function<T>::type, T>(rawCommand, target, args);
+  return command_base::_call<typename command_function<T>::type, T>(command_raw, target, args);
 }
 
 COMMAND_BASE_TEMPLATE_DEFINE(command_base_call);
 
 template <typename T> const torrent::Object
-command_base_call_value_base(command_base* rawCommand, target_type target, const torrent::Object& rawArgs, int base, int unit) {
+command_base_call_value_base(command_base* command_raw, target_type target, const torrent::Object& args_raw, int base, int unit) {
   if (!is_target_compatible<T>(target))
-    throw torrent::input_error("Target of wrong type to command.");
+    throw torrent::input_error("Target of wrong type to value command.");
 
-  const torrent::Object& arg = convert_to_single_argument(rawArgs);
+  auto& arg = convert_to_single_argument(args_raw);
 
   if (arg.type() == torrent::Object::TYPE_STRING) {
     torrent::Object::value_type val;
@@ -38,55 +38,55 @@ command_base_call_value_base(command_base* rawCommand, target_type target, const
     if (!parse_whole_value_nothrow(arg.as_string().c_str(), &val, base, unit))
       throw torrent::input_error("Not a value.");
 
-    return command_base::_call<typename command_value_function<T>::type, T>(rawCommand, target, val);
+    return command_base::_call<typename command_value_function<T>::type, T>(command_raw, target, val);
   }
 
-  return command_base::_call<typename command_value_function<T>::type, T>(rawCommand, target, unit * arg.as_value());
+  return command_base::_call<typename command_value_function<T>::type, T>(command_raw, target, unit * arg.as_value());
 }
 
 template <typename T> const torrent::Object
-command_base_call_value(command_base* rawCommand, target_type target, const torrent::Object& rawArgs) {
-  return command_base_call_value_base<T>(rawCommand, target, rawArgs, 0, 1);
+command_base_call_value(command_base* command_raw, target_type target, const torrent::Object& args_raw) {
+  return command_base_call_value_base<T>(command_raw, target, args_raw, 0, 1);
 }
 
 template <typename T> const torrent::Object
-command_base_call_value_kb(command_base* rawCommand, target_type target, const torrent::Object& rawArgs) {
-  return command_base_call_value_base<T>(rawCommand, target, rawArgs, 0, 1024);
+command_base_call_value_kb(command_base* command_raw, target_type target, const torrent::Object& args_raw) {
+  return command_base_call_value_base<T>(command_raw, target, args_raw, 0, 1024);
 }
 
 COMMAND_BASE_TEMPLATE_DEFINE(command_base_call_value);
 COMMAND_BASE_TEMPLATE_DEFINE(command_base_call_value_kb);
 
 template <typename T> const torrent::Object
-command_base_call_string(command_base* rawCommand, target_type target, const torrent::Object& rawArgs) {
+command_base_call_string(command_base* command_raw, target_type target, const torrent::Object& args_raw) {
   if (!is_target_compatible<T>(target))
-    throw torrent::input_error("Target of wrong type to command.");
+    throw torrent::input_error("Target of wrong type to string command.");
 
-  const torrent::Object& arg = convert_to_single_argument(rawArgs);
+  auto& arg = convert_to_single_argument(args_raw);
 
   if (arg.type() == torrent::Object::TYPE_RAW_STRING)
-    return command_base::_call<typename command_string_function<T>::type, T>(rawCommand, target, arg.as_raw_string().as_string());
+    return command_base::_call<typename command_string_function<T>::type, T>(command_raw, target, arg.as_raw_string().as_string());
 
-  return command_base::_call<typename command_string_function<T>::type, T>(rawCommand, target, arg.as_string());
+  return command_base::_call<typename command_string_function<T>::type, T>(command_raw, target, arg.as_string());
 }
 
 COMMAND_BASE_TEMPLATE_DEFINE(command_base_call_string);
 
 template <typename T> const torrent::Object
-command_base_call_list(command_base* rawCommand, target_type target, const torrent::Object& rawArgs) {
+command_base_call_list(command_base* command_raw, target_type target, const torrent::Object& args_raw) {
   if (!is_target_compatible<T>(target))
-    throw torrent::input_error("Target of wrong type to command.");
+    throw torrent::input_error("Target of wrong type to list command.");
 
-  if (rawArgs.type() != torrent::Object::TYPE_LIST) {
+  if (args_raw.type() != torrent::Object::TYPE_LIST) {
     torrent::Object::list_type arg;
-    
-    if (!rawArgs.is_empty())
-      arg.push_back(rawArgs);
 
-    return command_base::_call<typename command_list_function<T>::type, T>(rawCommand, target, arg);
+    if (!args_raw.is_empty())
+      arg.push_back(args_raw);
+
+    return command_base::_call<typename command_list_function<T>::type, T>(command_raw, target, arg);
   }
 
-  return command_base::_call<typename command_list_function<T>::type, T>(rawCommand, target, rawArgs.as_list());
+  return command_base::_call<typename command_list_function<T>::type, T>(command_raw, target, args_raw.as_list());
 }
 
 COMMAND_BASE_TEMPLATE_DEFINE(command_base_call_list);

src/rpc/command.h

@@ -3,6 +3,7 @@
 
 #include <functional>
 #include <limits>
+#include <new>
 #include <torrent/common.h>
 #include <torrent/object.h>
 #include <torrent/data/file_list_iterator.h>
@@ -28,7 +29,6 @@ struct target_wrapper<void> {
   typedef no_type*    cleaned_type;
 };
 
-// Since c++0x isn't out yet...
 template <typename T1, typename T2, typename T3>
 struct rt_triple : private std::pair<T1, T2> {
   typedef std::pair<T1, T2> base_type;
@@ -55,15 +55,11 @@ struct rt_triple : private std::pair<T1, T2> {
     base_type(src.first, src.second), third(src.third) {}
 };
 
-// Since it gets used so many places we might as well put it in the
-// rpc namespace.
-//typedef std::pair<int, void*> target_type;
-typedef rt_triple<int, void*, void*> target_type;
-
 class command_base;
 
-typedef const torrent::Object (*command_base_call_type)(command_base*, target_type, const torrent::Object&);
-typedef std::function<torrent::Object (target_type, const torrent::Object&)> base_function;
+using target_type            = rt_triple<int, void*, void*>;
+using base_function          = std::function<torrent::Object (target_type, const torrent::Object&)>;
+using command_base_call_type = const torrent::Object (command_base*, target_type, const torrent::Object&);
 
 template <typename tmpl> struct command_base_is_valid {};
 template <command_base_call_type tmpl_func> struct command_base_is_type {};
@@ -87,17 +83,18 @@ public:
 
   typedef const torrent::Object (*download_pair_slot) (command_base*, core::Download*, core::Download*, const torrent::Object&);
 
-  static const int target_generic  = 0;
-  static const int target_any      = 1;
-  static const int target_download = 2;
-  static const int target_peer     = 3;
-  static const int target_tracker  = 4;
-  static const int target_file     = 5;
-  static const int target_file_itr = 6;
+  static constexpr int target_generic       = 0;
+  static constexpr int target_any           = 1;
+  static constexpr int target_download      = 2;
+  static constexpr int target_peer          = 3;
+  static constexpr int target_tracker       = 4;
+  static constexpr int target_file          = 5;
+  static constexpr int target_file_itr      = 6;
+  static constexpr int target_download_pair = 7;
 
-  static const int target_download_pair = 7;
+  static constexpr unsigned int max_arguments = 10;
 
-  static const unsigned int max_arguments = 10;
+  static constexpr std::size_t optimal_alignment = std::max(alignof(std::max_align_t), alignof(base_function));
 
   struct stack_type {
     torrent::Object*       begin() { return reinterpret_cast<torrent::Object*>(buffer); }
@@ -114,10 +111,48 @@ public:
     char buffer[sizeof(torrent::Object) * max_arguments];
   };
 
-  command_base() { new (&_pod<base_function>()) base_function(); }
-  command_base(const command_base& src) { new (&_pod<base_function>()) base_function(src._pod<base_function>()); }
+  command_base() : m_copy_helper(nullptr), m_dest_helper(nullptr) {}
 
-  ~command_base() { _pod<base_function>().~base_function(); }
+  command_base(const command_base& src) {
+    m_copy_helper = src.m_copy_helper;
+    m_dest_helper = src.m_dest_helper;
+    if (src.m_copy_helper)
+      src.m_copy_helper(t_pod, src.t_pod);
+  }
+
+  command_base& operator=(const command_base& src) {
+    if (this != &src) {
+      if (m_dest_helper) m_dest_helper(t_pod);
+      m_copy_helper = src.m_copy_helper;
+      m_dest_helper = src.m_dest_helper;
+      if (src.m_copy_helper)
+        src.m_copy_helper(t_pod, src.t_pod);
+    }
+    return *this;
+  }
+
+  command_base(command_base&& src) noexcept {
+    m_copy_helper = src.m_copy_helper;
+    m_dest_helper = src.m_dest_helper;
+    if (src.m_copy_helper)
+      src.m_copy_helper(t_pod, src.t_pod);
+  }
+
+  command_base& operator=(command_base&& src) noexcept {
+    if (this != &src) {
+      if (m_dest_helper) m_dest_helper(t_pod);
+      m_copy_helper = src.m_copy_helper;
+      m_dest_helper = src.m_dest_helper;
+      if (src.m_copy_helper)
+        src.m_copy_helper(t_pod, src.t_pod);
+    }
+    return *this;
+  }
+
+  ~command_base() {
+    if (m_dest_helper)
+      m_dest_helper(t_pod);
+  }
 
   static torrent::Object* argument(unsigned int index) { return current_stack.begin() + index; }
   static torrent::Object& argument_ref(unsigned int index) { return *(current_stack.begin() + index); }
@@ -132,55 +167,51 @@ public:
   static void             pop_stack(stack_type* stack, torrent::Object* last_stack);
 
   template <typename T>
-  void set_function(T s, [[maybe_unused]] int value = command_base_is_valid<T>::value) { _pod<T>() = s; }
+  void set_function(T s, [[maybe_unused]] int value = command_base_is_valid<T>::value) {
+    static_assert(sizeof(T) <= sizeof(t_pod), "t_pod storage overflow");
+    static_assert(optimal_alignment >= alignof(T), "t_pod alignment insufficient for type");
+
+    if (m_dest_helper)
+      m_dest_helper(t_pod);
+
+    ::new (t_pod) T(std::move(s));
+
+    m_copy_helper = [](void* dest, const void* src) {
+      ::new (dest) T(*static_cast<const T*>(src));
+    };
+    m_dest_helper = [](void* ptr) {
+      static_cast<T*>(ptr)->~T();
+    };
+  }
 
   template <command_base_call_type T>
   void set_function_2(typename command_base_is_type<T>::type s, [[maybe_unused]] int value = command_base_is_valid<typename command_base_is_type<T>::type>::value) {
-    _pod<typename command_base_is_type<T>::type>() = s;
+    set_function<typename command_base_is_type<T>::type>(std::move(s));
   }
 
-  // The std::function object in GCC is castable between types with a
-  // pointer to a struct of ctor/dtor/calls for non-POD slots. As such
-  // it should be safe to cast between different std::function
-  // template types, yet what the C++0x standard will say about this I
-  // have no idea atm.
   template <typename tmpl> tmpl& _pod() { return reinterpret_cast<tmpl&>(t_pod); }
   template <typename tmpl> const tmpl& _pod() const { return reinterpret_cast<const tmpl&>(t_pod); }
 
   template <typename Func, typename T, typename Args>
   static const torrent::Object _call(command_base* cmd, target_type target, Args args);
 
-  command_base& operator = (const command_base& src) {
-    _pod<base_function>() = src._pod<base_function>();
-    return *this;
-  }
-
 protected:
-  // For use by functions that need to use placeholders to arguments
-  // within commands. E.d. callable command strings where one of the
-  // arguments within the command needs to be supplied by the caller.
+  using copy_fn_t = void (*)(void* dest, const void* src);
+  using dest_fn_t = void (*)(void* ptr);
 
-#ifdef HAVE_CXX11
-  union {
-    base_function t_pod;
-    // char t_pod[sizeof(base_function)];
-  };
-#else
-  union {
-    char t_pod[sizeof(base_function)];
-  };
-#endif
+  alignas(optimal_alignment) char t_pod[sizeof(base_function)];
+
+  copy_fn_t m_copy_helper;
+  dest_fn_t m_dest_helper;
 };
 
 template <typename T1 = void, typename T2 = void>
 struct target_type_id {
-  // Nothing here, so we cause an error.
 };
 
 template <typename T> inline bool
 is_target_compatible(const target_type& target) { return target.first == target_type_id<T>::value; }
 
-// Splitting pairs into separate targets.
 inline bool is_target_pair(const target_type& target) { return target.first >= command_base::target_download_pair; }
 
 template <typename T> inline T
@@ -203,7 +234,7 @@ command_base::_call(command_base* cmd, target_type target, Args args) {
 
 #define COMMAND_BASE_TEMPLATE_TYPE(func_type, func_parm)                \
   template <typename T, int proper = target_type_id<T>::proper_type> struct func_type { typedef std::function<func_parm> type; }; \
-                                                                        \
+                                                                         \
   template <> struct command_base_is_valid<func_type<target_type>::type>                { static const int value = 1; }; \
   template <> struct command_base_is_valid<func_type<core::Download*>::type>            { static const int value = 1; }; \
   template <> struct command_base_is_valid<func_type<torrent::Peer*>::type>             { static const int value = 1; }; \
@@ -211,8 +242,6 @@ command_base::_call(command_base* cmd, target_type target, Args args) {
   template <> struct command_base_is_valid<func_type<torrent::File*>::type>             { static const int value = 1; }; \
   template <> struct command_base_is_valid<func_type<torrent::FileListIterator*>::type> { static const int value = 1; };
 
-//  template <typename Q> struct command_base_is_valid<typename func_type<Q>::type > { static const int value = 1; };
-
 COMMAND_BASE_TEMPLATE_TYPE(command_function,        torrent::Object (T, const torrent::Object&));
 COMMAND_BASE_TEMPLATE_TYPE(command_value_function,  torrent::Object (T, const torrent::Object::value_type&));
 COMMAND_BASE_TEMPLATE_TYPE(command_string_function, torrent::Object (T, const std::string&));
@@ -220,7 +249,7 @@ COMMAND_BASE_TEMPLATE_TYPE(command_list_function,   torrent::Object (T, const to
 
 #define COMMAND_BASE_TEMPLATE_CALL(func_name, func_type)                \
   template <typename T> const torrent::Object func_name(command_base* rawCommand, target_type target, const torrent::Object& args); \
-                                                                        \
+                                                                         \
   template <> struct command_base_is_type<func_name<target_type> >       { static const int value = 1; typedef func_type<target_type>::type type; }; \
   template <> struct command_base_is_type<func_name<core::Download*> >   { static const int value = 1; typedef func_type<core::Download*>::type type; }; \
   template <> struct command_base_is_type<func_name<torrent::Peer*> >    { static const int value = 1; typedef func_type<torrent::Peer*>::type type; }; \

src/rpc/command_scheduler_item.h

@@ -5,7 +5,7 @@
 
 #include <functional>
 #include <torrent/object.h>
-#include <torrent/utils/scheduler.h>
+#include <torrent/system/scheduler.h>
 
 namespace rpc {
 
@@ -43,7 +43,7 @@ private:
   uint32_t                  m_interval{};
   std::chrono::microseconds m_time_scheduled;
 
-  torrent::utils::SchedulerEntry m_task;
+  torrent::system::SchedulerEntry m_task;
 
   // Flags for various things.
 };

src/rpc/exec_file.cc

@@ -1,16 +1,22 @@
 #include "config.h"
 
-#include <cerrno>
-#include <cstring>
-#include <fcntl.h>
-#include <string>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <torrent/system/thread.h>
+#include "rpc/exec_file.h"
 
-#include "exec_file.h"
-#include "parse.h"
+// #include <cassert>
+// #include <cerrno>
+// #include <cstring>
+// #include <fcntl.h>
+// #include <spawn.h>
+// #include <string>
+#include <unistd.h>
+// #include <sys/types.h>
+#include <sys/uio.h>
+// #include <torrent/net/fd.h>
+#include <torrent/system/thread.h>
+#include <torrent/system/spawn_process.h>
+#include <torrent/system/types.h>
+
+#include "rpc/parse.h"
 
 namespace rpc {
 
@@ -18,133 +24,56 @@ namespace rpc {
 
 int
 ExecFile::execute(const char* file, char* const* argv, int flags) {
-  // Write the executed command and its parameters to the log fd.
-  [[maybe_unused]] int result;
+  torrent::system::SpawnProcess spawn_process;
+
+  spawn_process.set_log_fd(m_log_fd);
+  spawn_process.set_background(flags & flag_background);
+  spawn_process.set_capture_output(flags & flag_capture);
 
   if (m_log_fd != -1) {
-    for (char* const* itr = argv; *itr != NULL; itr++) {
-      if (itr == argv)
-        result = write(m_log_fd, "\n---\n", sizeof("\n---\n"));
-      else
-        result = write(m_log_fd, " ", 1);
+    std::vector<struct iovec> iovecs;
+    iovecs.reserve(32);
+    iovecs.push_back({const_cast<char*>("\n---\n"), 5});
 
-      result = write(m_log_fd, *itr, std::strlen(*itr));
+    for (auto* itr = argv; *itr != nullptr; itr++) {
+      if (itr != argv)
+        iovecs.push_back({const_cast<char*>(" "), 1});
+
+      iovecs.push_back({*itr, std::strlen(*itr)});
     }
 
-    result = write(m_log_fd, "\n---\n", sizeof("\n---\n"));
+    iovecs.push_back({const_cast<char*>("\n---\n"), 5});
+
+    [[maybe_unused]] int result = ::writev(m_log_fd, iovecs.data(), iovecs.size());
   }
 
-  int pipeFd[2];
-
-  if ((flags & flag_capture) && pipe(pipeFd))
-    throw torrent::input_error("ExecFile::execute(...) Pipe creation failed.");
-
-  pid_t childPid = fork();
-
-  if (childPid == -1) {
-    if (flags & flag_capture) {
-      ::close(pipeFd[0]);
-      ::close(pipeFd[1]);
-    }
-    throw torrent::input_error("ExecFile::execute(...) Fork failed.");
-  }
-
-  if (childPid == 0) {
-    if (flags & flag_background) {
-      pid_t detached_pid = fork();
-
-      if (detached_pid == -1)
-        _exit(-1);
-
-      if (detached_pid != 0) {
-        if (m_log_fd != -1)
-          result = write(m_log_fd, "\n--- Background task ---\n", sizeof("\n--- Background task ---\n"));
-
-        _exit(0);
-      }
-
-      m_log_fd = -1;
-      flags &= ~flag_capture;
-    }
-
-    int devNull = open("/dev/null", O_RDWR);
-
-    if (devNull != -1)
-      dup2(devNull, 0);
-    else
-      ::close(0);
-
-    if (flags & flag_capture)
-      dup2(pipeFd[1], 1);
-    else if (m_log_fd != -1)
-      dup2(m_log_fd, 1);
-    else if (devNull != -1)
-      dup2(devNull, 1);
-    else
-      ::close(1);
-
-    if (m_log_fd != -1)
-      dup2(m_log_fd, 2);
-    else if (devNull != -1)
-      dup2(devNull, 2);
-    else
-      ::close(2);
-
-    // Close all fd's.
-    for (int i = 3, last = sysconf(_SC_OPEN_MAX); i != last; i++)
-      ::close(i);
-
-    result = execvp(file, argv);
-
-    _exit(result);
-  }
-
-  if (flags & flag_capture) {
-    m_capture = std::string();
-    ::close(pipeFd[1]);
-
-    char buffer[4096];
-    ssize_t length;
-
-    do {
-      length = read(pipeFd[0], buffer, sizeof(buffer));
-
-      if (length > 0)
-        m_capture += std::string(buffer, length);
-    } while (length > 0);
-
-    ::close(pipeFd[0]);
+  int spawn_status = spawn_process.execute(file, argv);
 
+  if (spawn_status != 0) {
     if (m_log_fd != -1) {
-      result = write(m_log_fd, "Captured output:\n", sizeof("Captured output:\n"));
-      result = write(m_log_fd, m_capture.data(), m_capture.length());
+      auto prefix    = "\n--- posix_spawn failed: ";
+      auto errno_str = torrent::system::errno_enum_str(spawn_status) + " ---\n";
+
+      struct iovec iovecs[2] = {
+        {const_cast<char*>(prefix), std::strlen(prefix)},
+        {const_cast<char*>(errno_str.c_str()), errno_str.size()},
+      };
+
+      [[maybe_unused]] int result = ::writev(m_log_fd, iovecs, 2);
     }
+
+    throw torrent::input_error("ExecFile::execute() posix_spawn failed: " + torrent::system::errno_enum_str(spawn_status));
   }
 
-  int status;
-
-  while (waitpid(childPid, &status, 0) == -1) {
-    switch (errno) {
-    case EINTR:
-      continue;
-    case ECHILD:
-      throw torrent::internal_error("ExecFile::execute(...) waitpid failed with ECHILD, child process not found.");
-    case EINVAL:
-      throw torrent::internal_error("ExecFile::execute(...) waitpid failed with EINVAL.");
-    default:
-      throw torrent::internal_error("ExecFile::execute(...) waitpid failed with unexpected error: " + std::string(std::strerror(errno)));
-    }
-  };
-
-  // Check return value?
-  if (m_log_fd != -1) {
-    if (WIFEXITED(status) && WEXITSTATUS(status) == 0)
-      result = write(m_log_fd, "\n--- Success ---\n", sizeof("\n--- Success ---\n"));
-    else
-      result = write(m_log_fd, "\n--- Error ---\n", sizeof("\n--- Error ---\n"));
+  if (flags & flag_background) {
+    m_waitpid_queue.close_pid(spawn_process.child_pid());
+    return 0;
   }
 
-  return status;
+  if (flags & flag_capture)
+    m_capture = spawn_process.capture_child_output();
+
+  return spawn_process.wait_for_child();
 }
 
 torrent::Object
@@ -204,4 +133,4 @@ ExecFile::execute_object(const torrent::Object& rawArgs, int flags) {
   return torrent::Object((int64_t)status);
 }
 
-}
+} // namespace rpc

src/rpc/exec_file.h

@@ -3,6 +3,8 @@
 
 #include <torrent/object.h>
 
+#include "utils/waitpid_queue.h"
+
 namespace rpc {
 
 class ExecFile {
@@ -24,6 +26,8 @@ public:
 private:
   int                 m_log_fd{-1};
   std::string         m_capture;
+
+  utils::WaitpidQueue m_waitpid_queue;
 };
 
 }

src/rpc/jsonrpc.cc

@@ -6,6 +6,7 @@
 #include <string>
 #include <torrent/common.h>
 #include <torrent/torrent.h>
+#include <torrent/utils/string_manip.h>
 
 #include "rpc/rpc_manager.h"
 #include "rpc/command.h"
@@ -33,24 +34,29 @@ json_to_object(const json& value) {
   case json::value_t::number_unsigned:
   case json::value_t::number_integer:
     return torrent::Object(value.get<int64_t>());
+
   case json::value_t::boolean:
     return value.get<bool>() ? torrent::Object(int64_t(1)) : torrent::Object(int64_t(0));
+
   case json::value_t::string:
     return torrent::Object(value.get<std::string>());
+
   case json::value_t::array: {
     auto  array_raw = torrent::Object::create_list();
     auto& array     = array_raw.as_list();
-    for (const auto& entry : value) {
+
+    for (const auto& entry : value)
       array.push_back(json_to_object(entry));
-    }
+
     return array_raw;
   }
   case json::value_t::object: {
     auto  map_raw = torrent::Object::create_map();
     auto& map     = map_raw.as_map();
-    for (const auto& entry : value.items()) {
+
+    for (const auto& entry : value.items())
       map[entry.key()] = json_to_object(entry.value());
-    }
+
     return map_raw;
   }
   case json::value_t::number_float:
@@ -61,17 +67,38 @@ json_to_object(const json& value) {
   }
 }
 
+// Note: Only throw rpc_errors here.
+
 json
-object_to_json(const torrent::Object& object) noexcept {
+object_to_json(const torrent::Object& object) {
   switch (object.type()) {
   case torrent::Object::TYPE_VALUE:
     return object.as_value();
+
   case torrent::Object::TYPE_STRING:
+    if (object.flags() & torrent::Object::flag_as_binary) {
+
+      // We should optimize our imported json library to support copying base64 strings directly.
+      if (object.flags() & torrent::Object::flag_base64) {
+        auto binary_data = torrent::utils::transform_from_base64_unsafe(object.as_string());
+
+        if (!binary_data.has_value())
+          throw rpc_error(JSONRPC_INTERNAL_ERROR, "invalid base64 string in base64-as-binary object");
+
+        return json::binary(*binary_data);
+      }
+
+      return json::binary({object.as_string().begin(), object.as_string().end()});
+    }
+
     return object.as_string();
+
   case torrent::Object::TYPE_LIST: {
     json result = json::array();
+
     for (const auto& obj : object.as_list())
       result.push_back(object_to_json(obj));
+
     return result;
   }
   case torrent::Object::TYPE_MAP: {
@@ -135,7 +162,9 @@ jsonrpc_call_command(const std::string& method, const json& params) {
 
   try {
     const auto& result = rpc::commands.call_command(itr, params_object, target);
+
     return object_to_json(result);
+
   } catch (untrusted_error& e) {
     throw rpc_error(JSONRPC_METHOD_NOT_FOUND_ERROR, e.what());
   }

src/rpc/lua.cc

@@ -10,6 +10,10 @@
 
 #ifdef HAVE_LUA
 #include <lua.hpp>
+// LUA_OK was introduced in Lua 5.2; define for Lua 5.1 and LuaJIT2.0.
+#ifndef LUA_OK
+#define LUA_OK 0
+#endif
 #endif
 
 #include <torrent/object.h>
@@ -211,7 +215,7 @@ object_to_target(const torrent::Object& obj, int call_flags, rpc::target_type* t
         auto tracker = new torrent::tracker::Tracker(rpc.slot_find_tracker()(download, std::stoi(std::string(index))));
 
         *deleter = [tracker]() { delete tracker; };
-        *target = rpc::make_target(command_base::target_tracker, target);
+        *target  = rpc::make_target(command_base::target_tracker, tracker);
       }
       break;
 

src/rpc/object_storage.h

@@ -17,7 +17,7 @@ namespace rpc {
 
 struct object_storage_node {
   torrent::Object object;
-  char            flags;
+  unsigned int    flags;
 };
 
 typedef std::unordered_map<fixed_key_type<64>, object_storage_node, hash_fixed_key_type> object_storage_base_type;

src/rpc/rpc_manager.cc

@@ -113,25 +113,20 @@ bool
 RpcManager::process(RPCType type, const char* in_buffer, uint32_t length, slot_response_callback callback) {
   switch (type) {
   case RPCType::XML:
-    // TODO: 'network.rpc.use_xmlrpc' should be a bool in RpcManager, not a command variable.
-    if (m_xmlrpc.is_valid() && rpc::call_command_value("network.rpc.use_xmlrpc")) {
-      return m_xmlrpc.process(in_buffer, length, callback);
-
-    } else {
+    if (!m_xmlrpc.is_valid() || !m_use_xmlrpc) {
       const std::string response = "<?xml version=\"1.0\"?><methodResponse><fault><value><struct><member><name>faultCode</name><value><i8>-501</i8></value></member><member><name>faultString</name><value><string>XML-RPC not supported</string></value></member></struct></value></fault></methodResponse>";
       return callback(response.c_str(), response.size());
     }
-    break;
+
+    return m_xmlrpc.process(in_buffer, length, callback);
 
   case RPCType::JSON:
-    if (rpc::call_command_value("network.rpc.use_jsonrpc")) {
-      return m_jsonrpc.process(in_buffer, length, callback);
-
-    } else {
+    if (!m_use_jsonrpc) {
       const std::string response = "{\"jsonrpc\":\"2.0\",\"error\":{\"code\":-32601,\"message\":\"JSON-RPC not supported\"},\"id\":null}";
       return callback(response.c_str(), response.size());
     }
-    break;
+
+    return m_jsonrpc.process(in_buffer, length, callback);
 
   default:
     throw torrent::input_error("invalid parameters: unknown RPC type");
@@ -172,32 +167,6 @@ RpcManager::cleanup() {
   m_jsonrpc.cleanup();
 }
 
-bool
-RpcManager::is_type_enabled(RPCType type) const {
-  switch (type) {
-  case RPCType::XML:
-    return m_is_xmlrpc_enabled;
-  case RPCType::JSON:
-    return m_is_jsonrpc_enabled;
-  default:
-    throw torrent::input_error("invalid parameters: unknown RPC type");
-  }
-}
-
-void
-RpcManager::set_type_enabled(RPCType type, bool enabled) {
-  switch (type) {
-  case RPCType::XML:
-    m_is_xmlrpc_enabled = enabled;
-    break;
-  case RPCType::JSON:
-    m_is_jsonrpc_enabled = enabled;
-    break;
-  default:
-    throw torrent::input_error("invalid parameters: unknown RPC type");
-  }
-}
-
 void
 RpcManager::insert_command(const char* name, const char* parm, const char* doc) {
   m_xmlrpc.insert_command(name, parm, doc);

src/rpc/rpc_manager.h

@@ -67,8 +67,11 @@ public:
   int                 dialect()                     { return m_xmlrpc.dialect(); }
   void                set_dialect(int dialect)      { m_xmlrpc.set_dialect(dialect); }
 
-  bool                is_type_enabled(RPCType type) const;
-  void                set_type_enabled(RPCType type, bool enabled);
+  bool                use_xmlrpc() const;
+  void                set_use_xmlrpc(bool v);
+
+  bool                use_jsonrpc() const;
+  void                set_use_jsonrpc(bool v);
 
   bool                process(RPCType type, const char* in_buffer, uint32_t length, slot_response_callback callback);
   bool                process_untrusted(RPCType type, const char* in_buffer, uint32_t length, slot_response_callback callback);
@@ -102,8 +105,9 @@ private:
   JsonRpc       m_jsonrpc;
 
   bool          m_handlers_initialized{};
-  bool          m_is_jsonrpc_enabled{true};
-  bool          m_is_xmlrpc_enabled{true};
+
+  bool          m_use_jsonrpc{true};
+  bool          m_use_xmlrpc{true};
 
   std::atomic<bool>         m_scgi_allow_compression{true};
   std::atomic<unsigned int> m_scgi_min_compress_size{1000};
@@ -116,6 +120,11 @@ private:
 
 extern RpcManager rpc;
 
+inline bool RpcManager::use_xmlrpc() const      { return m_use_xmlrpc; }
+inline void RpcManager::set_use_xmlrpc(bool v)  { m_use_xmlrpc = v; }
+inline bool RpcManager::use_jsonrpc() const     { return m_use_jsonrpc; }
+inline void RpcManager::set_use_jsonrpc(bool v) { m_use_jsonrpc = v; }
+
 } // namespace rpc
 
 #endif

src/rpc/scgi.cc

@@ -8,8 +8,8 @@
 #include <torrent/torrent.h>
 #include <torrent/exceptions.h>
 #include <torrent/net/fd.h>
-#include <torrent/net/poll.h>
 #include <torrent/net/socket_address.h>
+#include <torrent/system/poll.h>
 #include <torrent/runtime/socket_manager.h>
 
 #include "control.h"
@@ -48,12 +48,12 @@ SCgi::open_port(sockaddr* sa, unsigned int length, bool dont_route) {
 
   open(reinterpret_cast<sockaddr*>(sa), length);
 
-  torrent::runtime::socket_manager()->register_event_or_throw(this, []() {});
+  torrent::runtime::socket_manager()->register_event_or_throw(this, torrent::runtime::category_rpc, []() {});
 }
 
 void
 SCgi::open_named(const std::string& filename) {
-  if (filename.empty() || filename.size() > 4096)
+  if (filename.empty() || filename.size() >= sizeof(sockaddr_un::sun_path))
     throw torrent::resource_error("Invalid filename length.");
 
   auto buffer = std::make_unique<char[]>(sizeof(sockaddr_un) + filename.size() + 1);
@@ -72,7 +72,7 @@ SCgi::open_named(const std::string& filename) {
 
   open(reinterpret_cast<sockaddr*>(sa), offsetof(struct sockaddr_un, sun_path) + filename.size() + 1);
 
-  torrent::runtime::socket_manager()->register_event_or_throw(this, []() {});
+  torrent::runtime::socket_manager()->register_event_or_throw(this, torrent::runtime::category_rpc, []() {});
 
   m_path = filename;
 }
@@ -86,7 +86,7 @@ SCgi::open_fd(int fd) {
 
   // fd is already bound and listening; no bind()/listen() needed.
 
-  torrent::runtime::socket_manager()->register_event_or_throw(this, []() {});
+  torrent::runtime::socket_manager()->register_event_or_throw(this, torrent::runtime::category_rpc, []() {});
 }
 
 void
@@ -111,7 +111,6 @@ SCgi::activate() {
 
   torrent::this_thread::poll()->open(this);
   torrent::this_thread::poll()->insert_read(this);
-  torrent::this_thread::poll()->insert_error(this);
 }
 
 // TODO: This should close the fd to avoid reuse.
@@ -183,7 +182,7 @@ SCgi::event_read() {
         task->cancel_open();
       };
 
-    bool result = torrent::runtime::socket_manager()->open_event_or_cleanup(m_current->get(), open_func, cleanup_func);
+    bool result = torrent::runtime::socket_manager()->open_event_or_cleanup(m_current->get(), torrent::runtime::category_rpc, open_func, cleanup_func);
 
     if (!result)
       break;

src/rpc/scgi.h

@@ -3,13 +3,13 @@
 
 #include <array>
 #include <memory>
-#include <torrent/event.h>
+#include <torrent/system/event.h>
 
 #include "rpc/scgi_task.h"
 
 namespace rpc {
 
-class SCgi : public torrent::Event {
+class SCgi : public torrent::system::Event {
 public:
   static const int max_tasks = 100;
 

src/rpc/scgi_task.cc

@@ -11,10 +11,10 @@
 #include <sys/socket.h>
 #include <torrent/exceptions.h>
 #include <torrent/net/fd.h>
-#include <torrent/net/poll.h>
 #include <torrent/runtime/socket_manager.h>
+#include <torrent/system/callbacks.h>
+#include <torrent/system/poll.h>
 #include <torrent/utils/log.h>
-#include <torrent/system/thread.h>
 
 #include "control.h"
 #include "globals.h"
@@ -24,6 +24,12 @@
 
 namespace rpc {
 
+SCgiTask::SCgiTask()
+  : m_callback_id(torrent::system::make_callback_id()) {
+
+  reset_file_descriptor();
+}
+
 void
 SCgiTask::open(SCgi* parent, int fd) {
   set_file_descriptor(fd);
@@ -43,7 +49,6 @@ SCgiTask::open(SCgi* parent, int fd) {
 
   torrent::this_thread::poll()->open(this);
   torrent::this_thread::poll()->insert_read(this);
-  torrent::this_thread::poll()->insert_error(this);
 
   auto lock = std::lock_guard<std::mutex>(m_result_mutex);
 
@@ -59,7 +64,7 @@ SCgiTask::cancel_open() {
   torrent::this_thread::poll()->remove_and_close(this);
 
   torrent::fd_close(file_descriptor());
-  set_file_descriptor(-1);
+  reset_file_descriptor();
 };
 
 void
@@ -67,14 +72,13 @@ SCgiTask::close() {
   if (!is_open())
     return;
 
-  torrent::main_thread::thread()->cancel_callback_and_wait(this);
-  torrent::system::Thread::self()->cancel_callback(this);
+  torrent::system::cancel_callback_and_wait(m_callback_id, scgi_thread::thread(), torrent::main_thread::thread());
 
   torrent::runtime::socket_manager()->close_event_or_throw(this, [this]() {
       torrent::this_thread::poll()->remove_and_close(this);
 
       torrent::fd_close(file_descriptor());
-      set_file_descriptor(-1);
+      reset_file_descriptor();
     });
 
   // The callbacks are guaranteed to be finished/canceled at this point.
@@ -86,14 +90,14 @@ SCgiTask::close() {
 void
 SCgiTask::event_read() {
   int read_length = m_buffer.size() - m_position;
-  
+
   if (m_content_length == 0)
     read_length--;
 
   if (read_length <= 0)
     throw torrent::internal_error("SCgiTask::event_read() no space in buffer for event_read.");
-  
-  int bytes = ::recv(m_fileDesc, m_buffer.data() + m_position, read_length, 0);
+
+  int bytes = ::recv(file_descriptor(), m_buffer.data() + m_position, read_length, 0);
 
   if (bytes <= 0) {
     if (bytes == 0 || !(errno == EAGAIN || errno == EINTR))
@@ -176,10 +180,10 @@ event_read_failed:
 
 void
 SCgiTask::event_write() {
-  int bytes = ::send(m_fileDesc, m_buffer.data() + m_position, m_buffer.size() - m_position, 0);
+  int bytes = ::send(file_descriptor(), m_buffer.data() + m_position, m_buffer.size() - m_position, 0);
 
   if (bytes == -1) {
-    if (!(errno == EAGAIN || errno == EINTR || errno == EPIPE))
+    if (!(errno == EAGAIN || errno == EINTR))
       close();
 
     return;
@@ -321,7 +325,7 @@ SCgiTask::detect_content_type(const std::string& content_type) {
 
 void
 SCgiTask::receive_call(const char* buffer, uint32_t length) {
-  assert(torrent::system::Thread::self() == scgi_thread::thread());
+  assert(torrent::this_thread::thread() == scgi_thread::thread());
 
   RpcManager::RPCType rpc_type;
 
@@ -348,7 +352,7 @@ SCgiTask::receive_call(const char* buffer, uint32_t length) {
       m_result_mutex.lock();
       m_result_mutex.unlock();
 
-      scgi_thread::thread()->callback_interrupt_polling(this, [this]() {
+      scgi_thread::callback_interrupt(m_callback_id, [this]() {
           if (!is_open())
             return;
 
@@ -368,7 +372,7 @@ SCgiTask::receive_call(const char* buffer, uint32_t length) {
   m_result_mutex.lock();
   m_result_mutex.unlock();
 
-  torrent::main_thread::thread()->callback_interrupt_polling(this, [this, rpc_type, buffer, length, result_callback]() {
+  torrent::main_thread::callback_interrupt(m_callback_id, [this, rpc_type, buffer, length, result_callback]() {
       // Memory barrier for the input data.
       // std::atomic_thread_fence(std::memory_order_acquire);
       m_result_mutex.lock();
@@ -383,7 +387,7 @@ SCgiTask::receive_call(const char* buffer, uint32_t length) {
 
 void
 SCgiTask::receive_write(const char* buffer, uint32_t length) {
-  assert(torrent::system::Thread::self() == torrent::main_thread::thread());
+  assert(torrent::this_thread::thread() == torrent::main_thread::thread());
 
   if (buffer == nullptr || length > (100 << 20))
     throw torrent::internal_error("SCgiTask::receive_write(...) received bad input.");

src/rpc/scgi_task.h

@@ -4,13 +4,13 @@
 #include <memory>
 #include <mutex>
 #include <vector>
-#include <torrent/event.h>
+#include <torrent/system/event.h>
 
 namespace rpc {
 
 class SCgi;
 
-class SCgiTask : public torrent::Event {
+class SCgiTask : public torrent::system::Event {
 public:
   static constexpr int default_buffer_size = 8191;
   static constexpr int max_header_size     = 2000;
@@ -18,12 +18,12 @@ public:
 
   enum ContentType { XML, JSON };
 
-  SCgiTask() { m_fileDesc = -1; }
+  SCgiTask();
 
   const char*         type_name() const override { return "scgi-task"; }
 
-  bool                is_open() const      { return m_fileDesc != -1; }
-  bool                is_available() const { return m_fileDesc == -1; }
+  bool                is_open() const      { return file_descriptor() != -1; }
+  bool                is_available() const { return file_descriptor() == -1; }
 
   void                open(SCgi* parent, int fd);
   void                cancel_open();
@@ -54,7 +54,8 @@ private:
   void                plaintext_response(const char* buffer, uint32_t content_length);
   void                gzip_response(const char* buffer, uint32_t content_length);
 
-  SCgi*               m_parent{};
+  SCgi*                        m_parent{};
+  torrent::system::callback_id m_callback_id;
 
   std::mutex          m_result_mutex;
 

src/rpc/xmlrpc.cc

@@ -1,3 +1,4 @@
+#include <deque>
 #include "config.h"
 
 #include "xmlrpc.h"
@@ -9,20 +10,21 @@
 
 namespace rpc {
 
-std::vector<std::unique_ptr<const char>> XmlRpc::m_command_names;
+std::deque<std::string>  XmlRpc::m_command_names;
 
 const char*
 XmlRpc::store_command_name(const char* name) {
-  if (::strnlen(name, 8192) == 8192)
+  if (::strnlen(name, 1024 + 1) > 1024)
     throw torrent::input_error("XMLRPC command name too long, limit is 8192 characters.");
 
   for (const auto& itr : m_command_names) {
-    if (::strcmp(itr.get(), name) == 0)
-      return itr.get();
+    if (itr == name)
+      return itr.c_str();
   }
 
-  m_command_names.push_back(std::unique_ptr<const char>(::strdup(name)));
-  return m_command_names.back().get();
+  m_command_names.push_back(name);
+
+  return m_command_names.back().c_str();
 }
 
 #ifndef HAVE_XMLRPC_C

src/rpc/xmlrpc.h

@@ -1,6 +1,7 @@
 #ifndef RTORRENT_RPC_XMLRPC_H
 #define RTORRENT_RPC_XMLRPC_H
 
+#include <deque>
 #include <functional>
 #include <torrent/common.h>
 #include <torrent/hash_string.h>
@@ -61,7 +62,7 @@ public:
 private:
   static const char*  store_command_name(const char* name);
 
-  static std::vector<std::unique_ptr<const char>> m_command_names;
+  static std::deque<std::string>  m_command_names;
 
   slot_download       m_slotFindDownload;
   slot_file           m_slotFindFile;

src/rpc/xmlrpc_c.cc

@@ -272,12 +272,27 @@ object_to_xmlrpc(xmlrpc_env* env, const torrent::Object& object) {
 #ifdef XMLRPC_HAVE_I8
     if (rpc.dialect() != XmlRpc::dialect_generic)
       return xmlrpc_i8_new(env, object.as_value());
-#else
-    return xmlrpc_int_new(env, object.as_value());
 #endif
 
+    return xmlrpc_int_new(env, object.as_value());
+
   case torrent::Object::TYPE_STRING:
   {
+    if (object.flags() & torrent::Object::flag_as_binary) {
+
+      // This causes decode-and-reencode for base64, as XMLRPC-C doesn't allow us to pass base64 strings.
+      if (object.flags() & torrent::Object::flag_base64) {
+        auto binary_data = torrent::utils::transform_from_base64_unsafe(object.as_string());
+
+        if (!binary_data.has_value())
+          throw torrent::input_error("invalid base64 string in base64-as-binary object");
+
+        return xmlrpc_base64_new(env, binary_data->size(), reinterpret_cast<const unsigned char*>(binary_data->data()));
+      }
+
+      return xmlrpc_base64_new(env, object.as_string().size(), reinterpret_cast<const unsigned char*>(object.as_string().c_str()));
+    }
+
 #ifdef XMLRPC_HAVE_I8
     // The versions that support I8 do implicit utf-8 validation.
     xmlrpc_value* result = xmlrpc_string_new(env, object.as_string().c_str());

src/rpc/xmlrpc_tinyxml2.cc

@@ -13,6 +13,7 @@
 
 #include <torrent/exceptions.h>
 #include <torrent/object.h>
+#include <torrent/utils/string_manip.h>
 
 #include "parse_commands.h"
 #include "rpc/tinyxml2/tinyxml2.h"
@@ -66,56 +67,85 @@ xml_value_to_object(const tinyxml2::XMLNode* elem) {
   if (elem == nullptr) {
     throw rpc_error(XMLRPC_INTERNAL_ERROR, "received null element to convert");
   }
+
   if (std::strncmp(elem->Value(), "value", sizeof("value")) != 0) {
     throw rpc_error(XMLRPC_INTERNAL_ERROR, "received non-value element to convert");
   }
+
   auto root_element = elem->FirstChild();
+
+  if (root_element == nullptr)
+    throw rpc_error(XMLRPC_TYPE_ERROR, "empty value element");
+
   auto root_type    = root_element->Value();
+
   if (std::strncmp(root_type, "string", sizeof("string")) == 0) {
     auto child_element = root_element->FirstChild();
-    if (child_element == nullptr) {
+
+    if (child_element == nullptr)
       return torrent::Object("");
-    }
+
     return torrent::Object(child_element->ToText()->Value());
+
   } else if (std::strncmp(root_type, "int", sizeof("int")) == 0 ||
              std::strncmp(root_type, "i4", sizeof("i4")) == 0 ||
              std::strncmp(root_type, "i8", sizeof("i8")) == 0) {
     return torrent::Object(element_to_int(root_element));
+
   } else if (std::strncmp(root_type, "boolean", sizeof("boolean")) == 0) {
-    auto boolean_text = std::string(root_element->FirstChild()->ToText()->Value());
-    if (boolean_text == "1") {
+    auto child_element = root_element->FirstChild();
+
+    if (child_element == nullptr)
+      throw rpc_error(XMLRPC_TYPE_ERROR, "empty boolean element");
+
+    auto boolean_text = std::string(child_element->ToText()->Value());
+
+    if (boolean_text == "1")
       return torrent::Object((int64_t)1);
-    } else if (boolean_text == "0") {
+    else if (boolean_text == "0")
       return torrent::Object((int64_t)0);
-    }
+
     throw rpc_error(XMLRPC_TYPE_ERROR, "unknown boolean value: " + boolean_text);
+
   } else if (std::strncmp(root_type, "array", sizeof("array")) == 0) {
     auto  array_raw    = torrent::Object::create_list();
     auto& array        = array_raw.as_list();
     auto  data_element = root_element->ToElement()->FirstChildElement("data");
+
     if (data_element == nullptr)
       throw rpc_error(XMLRPC_PARSE_ERROR, "could not find expected data element in array");
-    for (auto child = data_element->FirstChildElement("value"); child; child = child->NextSiblingElement("value")) {
+
+    for (auto child = data_element->FirstChildElement("value"); child; child = child->NextSiblingElement("value"))
       array.push_back(xml_value_to_object(child));
-    }
+
     return array_raw;
   } else if (std::strncmp(root_type, "struct", sizeof("struct")) == 0) {
     auto  map_raw = torrent::Object::create_map();
     auto& map     = map_raw.as_map();
+
     for (auto child = root_element->FirstChildElement("member"); child; child = child->NextSiblingElement("member")) {
-      auto key = child->FirstChildElement("name")->GetText();
-      map[key] = std::move(xml_value_to_object(child->FirstChildElement("value")));
+      auto name_element = child->FirstChildElement("name");
+
+      if (name_element == nullptr)
+        throw rpc_error(XMLRPC_PARSE_ERROR, "struct member missing name element");
+
+      map[name_element->GetText()] = std::move(xml_value_to_object(child->FirstChildElement("value")));
     }
+
     return map_raw;
+
   } else if (std::strncmp(root_type, "base64", sizeof("base64")) == 0) {
     auto child_element = root_element->FirstChild();
-    if (child_element == nullptr) {
+
+    if (child_element == nullptr)
       return torrent::Object("");
-    }
+
     return torrent::Object(utils::decode_base64(utils::remove_newlines(child_element->ToText()->Value())));
+
   } else {
     throw rpc_error(XMLRPC_INTERNAL_ERROR, "received unsupported value type: " + std::string(root_type));
   }
+
   return torrent::Object();
 }
 
@@ -123,15 +153,32 @@ void
 print_object_xml(const torrent::Object& obj, tinyxml2::XMLPrinter* printer) {
   switch (obj.type()) {
   case torrent::Object::TYPE_STRING:
+    if (obj.flags() & torrent::Object::flag_as_binary) {
+      // It is optimal for tinyxml2 to pass base64 strings directly from torrent::string_utf8 sources.
+      if (obj.flags() & torrent::Object::flag_base64) {
+        printer->OpenElement("base64", true);
+        printer->PushText(obj.as_string().c_str());
+        printer->CloseElement(true);
+        break;
+      }
+
+      printer->OpenElement("base64", true);
+      printer->PushText(torrent::utils::transform_to_base64(obj.as_string()).c_str());
+      printer->CloseElement(true);
+      break;
+    }
+
     printer->OpenElement("string", true);
     printer->PushText(obj.as_string().c_str());
     printer->CloseElement(true);
     break;
+
   case torrent::Object::TYPE_VALUE:
     printer->OpenElement("i8", true);
     printer->PushText(std::to_string(obj.as_value()).c_str());
     printer->CloseElement(true);
     break;
+
   case torrent::Object::TYPE_LIST:
     printer->OpenElement("array", true);
     printer->OpenElement("data", true);

src/scgi/thread_scgi.cc

@@ -12,11 +12,6 @@
 
 namespace scgi {
 
-class ThreadScgiInternal {
-public:
-  static ThreadScgi* thread_scgi() { return ThreadScgi::internal_thread_scgi(); }
-};
-
 ThreadScgi* ThreadScgi::m_thread_scgi{};
 
 void
@@ -60,7 +55,7 @@ ThreadScgi::set_scgi(rpc::SCgi* scgi) {
 
   change_rpc_log();
 
-  callback(nullptr, [this]() {
+  callback([this]() {
       if (m_scgi == nullptr)
         throw torrent::internal_error("Tried to start SCGI but object was not present.");
 
@@ -72,7 +67,7 @@ ThreadScgi::set_scgi(rpc::SCgi* scgi) {
 
 void
 ThreadScgi::set_rpc_log(const std::string& filename) {
-  callback(nullptr, [this, filename]() {
+  callback([this, filename]() {
       m_rpc_log_filename = filename;
       change_rpc_log();
     });
@@ -127,15 +122,13 @@ ThreadScgi::next_timeout() {
 
 namespace scgi_thread {
 
-torrent::system::Thread* thread()                         { return scgi::ThreadScgiInternal::thread_scgi(); }
-std::thread::id          thread_id()                      { return scgi::ThreadScgiInternal::thread_scgi()->thread_id(); }
+torrent::system::Thread* thread()                         { return scgi::ThreadScgi::thread_scgi(); }
+std::thread::id          thread_id()                      { return scgi::ThreadScgi::thread_scgi()->thread_id(); }
 
-void callback(void* target, std::function<void ()>&& fn) { scgi::ThreadScgiInternal::thread_scgi()->callback(target, std::move(fn)); }
-void cancel_callback(void* target)                       { scgi::ThreadScgiInternal::thread_scgi()->cancel_callback(target); }
-void cancel_callback_and_wait(void* target)              { scgi::ThreadScgiInternal::thread_scgi()->cancel_callback_and_wait(target); }
+void        callback_interrupt(torrent::system::callback_id& id, std::function<void ()>&& fn) { scgi::ThreadScgi::thread_scgi()->callback_interrupt(id, std::move(fn)); }
 
-rpc::SCgi*  scgi()                                       { return scgi::ThreadScgiInternal::thread_scgi()->scgi(); }
-void        set_scgi(rpc::SCgi* scgi)                    { scgi::ThreadScgiInternal::thread_scgi()->set_scgi(scgi); }
-void        set_rpc_log(const std::string& filename)     { scgi::ThreadScgiInternal::thread_scgi()->set_rpc_log(filename); }
+rpc::SCgi*  scgi()                                       { return scgi::ThreadScgi::thread_scgi()->scgi(); }
+void        set_scgi(rpc::SCgi* scgi)                    { scgi::ThreadScgi::thread_scgi()->set_scgi(scgi); }
+void        set_rpc_log(const std::string& filename)     { scgi::ThreadScgi::thread_scgi()->set_rpc_log(filename); }
 
 } // namespace scgi_thread

src/scgi/thread_scgi.h

@@ -11,8 +11,6 @@ class SCgi;
 
 namespace scgi {
 
-class ThreadScgiInternal;
-
 class ThreadScgi : public torrent::system::Thread {
 public:
 
@@ -28,8 +26,6 @@ public:
   void                set_rpc_log(const std::string& filename);
 
 protected:
-  friend class ThreadScgiInternal;
-
   ThreadScgi() = default;
 
   static auto         internal_thread_scgi() { return m_thread_scgi; }
@@ -43,9 +39,9 @@ private:
   void                task_touch_log();
   void                change_rpc_log();
 
-  static ThreadScgi*  m_thread_scgi;
+  static ThreadScgi*      m_thread_scgi;
 
-  std::atomic<rpc::SCgi*> m_scgi{nullptr};
+  std::atomic<rpc::SCgi*> m_scgi{};
   std::string             m_rpc_log_filename;
 };
 

src/session/session_manager.cc

@@ -5,6 +5,7 @@
 #include <cassert>
 #include <cstdlib>
 #include <torrent/exceptions.h>
+#include <torrent/system/callbacks.h>
 #include <torrent/utils/log.h>
 
 #include "globals.h"
@@ -23,6 +24,7 @@ namespace session {
 
 SessionManager::SessionManager(torrent::system::Thread* thread)
   : m_thread(thread),
+    m_callback_id(torrent::system::make_callback_id()),
     m_lockfile(std::make_unique<utils::Lockfile>()) {
 }
 
@@ -221,8 +223,7 @@ SessionManager::cleanup() {
 
   LT_LOG("session manager cleaned up", 0);
 
-  session_thread::cancel_callback(this);
-  torrent::main_thread::cancel_callback(this);
+  torrent::system::cancel_callback_and_wait(m_callback_id, session_thread::thread(), torrent::main_thread::thread());
 }
 
 void
@@ -233,7 +234,9 @@ SessionManager::callback_pending_builds() {
   if (m_callback_scheduled_process_pending_builds.exchange(true))
     return;
 
-  torrent::main_thread::callback(this, [this]() { process_pending_builds(false); });
+  torrent::main_thread::callback(m_callback_id, [this]() {
+      process_pending_builds(false);
+    });
 }
 
 void
@@ -247,7 +250,9 @@ SessionManager::callback_save_request() {
   if (m_callback_scheduled_process_saves_request.exchange(true))
     return;
 
-  session_thread::callback(this, [this]() { process_save_request(); });
+  session_thread::callback(m_callback_id, [this]() {
+      process_save_request();
+    });
 }
 
 void
@@ -255,7 +260,9 @@ SessionManager::callback_finished_saves() {
   if (m_callback_scheduled_process_finished_saves.exchange(true))
     return;
 
-  session_thread::callback(this, [this]() { process_finished_saves(); });
+  session_thread::callback(m_callback_id, [this]() {
+      process_finished_saves();
+    });
 }
 
 void

src/session/session_manager.h

@@ -89,37 +89,39 @@ private:
   bool                replace_save_request_unsafe(SaveRequest& download);
   bool                remove_completely_unsafe(core::Download* download, std::unique_lock<std::mutex>& lock);
 
-  torrent::system::Thread* m_thread;
+  using ProcessingSave = std::pair<std::future<void>, SaveRequest>;
 
-  bool                m_freeze_info{};
-  std::string         m_path;
-  bool                m_use_fsyncdisk{true};
-  bool                m_use_lock{true};
+  torrent::system::Thread*     m_thread;
+  torrent::system::callback_id m_callback_id;
 
-  std::mutex          m_mutex;
-  bool                m_active{};
+  bool                         m_freeze_info{};
+  std::string                  m_path;
+  bool                         m_use_fsyncdisk{true};
+  bool                         m_use_lock{true};
 
-  typedef std::pair<std::future<void>, SaveRequest> ProcessingSave;
+  align_cacheline std::mutex   m_mutex;
 
-  std::deque<SaveRequest>     m_save_requests;
-  std::atomic<size_t>         m_save_request_counter{};
-  std::list<ProcessingSave>   m_processing_saves;
-  std::atomic<size_t>         m_processing_save_counter{};
-  std::condition_variable     m_finished_condition;
-  std::vector<ProcessingSave> m_finished_saves;
+  bool                         m_active{};
 
-  std::atomic<bool>           m_callback_scheduled_process_pending_builds{};
-  std::atomic<bool>           m_callback_scheduled_process_saves_request{};
-  std::atomic<bool>           m_callback_scheduled_process_finished_saves{};
+  std::deque<SaveRequest>      m_save_requests;
+  std::atomic<size_t>          m_save_request_counter{};
+  std::list<ProcessingSave>    m_processing_saves;
+  std::atomic<size_t>          m_processing_save_counter{};
+  std::condition_variable      m_finished_condition;
+  std::vector<ProcessingSave>  m_finished_saves;
+
+  std::atomic<bool>            m_callback_scheduled_process_pending_builds{};
+  std::atomic<bool>            m_callback_scheduled_process_saves_request{};
+  std::atomic<bool>            m_callback_scheduled_process_finished_saves{};
 
   std::unique_ptr<utils::Lockfile> m_lockfile;
 
-  std::chrono::microseconds   m_last_storage_error_message{};
-  unsigned int                m_ignored_storage_error_count{};
+  std::chrono::microseconds    m_last_storage_error_message{};
+  unsigned int                 m_ignored_storage_error_count{};
 
   // Pending builds are only ever locked by main thread.
-  std::mutex                  m_pending_builds_mutex;
-  std::deque<core::Download*> m_pending_builds;
+  std::mutex                   m_pending_builds_mutex;
+  std::deque<core::Download*>  m_pending_builds;
 };
 
 inline bool        SessionManager::is_used() const            { return !m_path.empty(); }

src/session/thread_session.cc

@@ -4,15 +4,11 @@
 
 #include <torrent/exceptions.h>
 
+#include "globals.h"
 #include "session/session_manager.h"
 
 namespace session {
 
-class ThreadSessionInternal {
-public:
-  static ThreadSession* thread_session() { return ThreadSession::internal_thread_session(); }
-};
-
 ThreadSession* ThreadSession::m_thread_session{nullptr};
 
 void
@@ -74,14 +70,14 @@ ThreadSession::next_timeout() {
 
 namespace session_thread {
 
-torrent::system::Thread* thread()                         { return session::ThreadSessionInternal::thread_session(); }
-std::thread::id          thread_id()                      { return session::ThreadSessionInternal::thread_session()->thread_id(); }
+torrent::system::Thread* thread()                                           { return session::ThreadSession::thread_session(); }
+std::thread::id          thread_id()                                        { return thread()->thread_id(); }
 
-void callback(void* target, std::function<void ()>&& fn) { session::ThreadSessionInternal::thread_session()->callback(target, std::move(fn)); }
-void cancel_callback(void* target)                       { session::ThreadSessionInternal::thread_session()->cancel_callback(target); }
-void cancel_callback_and_wait(void* target)              { session::ThreadSessionInternal::thread_session()->cancel_callback_and_wait(target); }
+void callback(std::function<void()>&& fn)                                   { thread()->callback(std::move(fn)); }
+void callback(torrent::system::callback_id& id, std::function<void()>&& fn) { thread()->callback(id, std::move(fn)); }
+void cancel_callback(torrent::system::callback_id& id)                      { thread()->cancel_callback(id); }
 
-session::SessionManager* manager()                       { return session::ThreadSessionInternal::thread_session()->manager(); }
-std::string              session_path()                  { return session::ThreadSessionInternal::thread_session()->manager()->path(); }
+session::SessionManager* manager()                                          { return session::ThreadSession::thread_session()->manager(); }
+std::string              session_path()                                     { return manager()->path(); }
 
 } // namespace session_thread

src/setup.cc

@@ -38,7 +38,7 @@ parse_main_options(int argc, char** argv) {
     optionParser.insert_option('b', [](auto& arg) { rpc::call_command_set_string("network.bind_address.set", arg); });
     optionParser.insert_option('d', [](auto& arg) { rpc::call_command_set_string("directory.default.set", arg); });
     optionParser.insert_option('i', [](auto& arg) { rpc::call_command_set_string("ip", arg); });
-    optionParser.insert_option('p', [](auto& arg) { rpc::call_command_set_string("network.port_range.set", arg); });
+    optionParser.insert_option('p', [](auto& arg) { rpc::call_command_set_string("network.listen.port.range.set", arg); });
     optionParser.insert_option('s', [](auto& arg) { rpc::call_command_set_string("session", arg); });
 
     optionParser.insert_option('O',      [](auto& arg) { rpc::parse_command_single_std(arg); });

src/signal_handler.cc

@@ -42,6 +42,7 @@ SignalHandler::set_handler(unsigned int signum, slot_void slot) {
     throw std::logic_error("SignalHandler::set_handler(...) received an empty slot.");
 
   struct sigaction sa;
+
   sigemptyset(&sa.sa_mask);
   sa.sa_flags = SA_RESTART;
   sa.sa_handler = &SignalHandler::caught;
@@ -52,6 +53,46 @@ SignalHandler::set_handler(unsigned int signum, slot_void slot) {
     m_handlers[signum] = slot;
 }
 
+void
+SignalHandler::set_block(unsigned int signum) {
+  if (signum >= HIGHEST_SIGNAL)
+    throw std::logic_error("SignalHandler::set_block(...) received invalid signal value.");
+
+  sigset_t mask;
+
+  sigemptyset(&mask);
+  sigaddset(&mask, signum);
+
+  if (pthread_sigmask(SIG_BLOCK, &mask, NULL) == -1)
+    throw std::logic_error("Could not block signal: " + std::string(std::strerror(errno)));
+}
+
+void
+SignalHandler::set_unblock(unsigned int signum) {
+  if (signum >= HIGHEST_SIGNAL)
+    throw std::logic_error("SignalHandler::set_unblock(...) received invalid signal value.");
+
+  sigset_t mask;
+
+  sigemptyset(&mask);
+  sigaddset(&mask, signum);
+
+  if (pthread_sigmask(SIG_UNBLOCK, &mask, NULL) == -1)
+    throw std::logic_error("Could not unblock signal: " + std::string(std::strerror(errno)));
+}
+
+void
+SignalHandler::set_sigchild_ignore() {
+  struct sigaction sa;
+  sa.sa_handler = SIG_IGN;
+  sa.sa_flags   = SA_NOCLDWAIT | SA_RESTART;
+
+  sigemptyset(&sa.sa_mask);
+
+  if (sigaction(SIGCHLD, &sa, NULL) == -1)
+    throw std::logic_error("Could not set sigaction (ignore) for SIGCHLD: " + std::string(std::strerror(errno)));
+}
+
 void
 SignalHandler::set_sigaction_handler(unsigned int signum, handler_slot slot) {
   if (signum >= HIGHEST_SIGNAL)

src/signal_handler.h

@@ -1,37 +1,3 @@
-// rTorrent - BitTorrent client
-// Copyright (C) 2005-2011, Jari Sundell
-//
-// This program is free software; you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation; either version 2 of the License, or
-// (at your option) any later version.
-// 
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-// 
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-//
-// In addition, as a special exception, the copyright holders give
-// permission to link the code of portions of this program with the
-// OpenSSL library under certain conditions as described in each
-// individual source file, and distribute linked combinations
-// including the two.
-//
-// You must obey the GNU General Public License in all respects for
-// all of the code used other than OpenSSL.  If you modify file(s)
-// with this exception, you may extend this exception to your version
-// of the file(s), but you are not obligated to do so.  If you do not
-// wish to do so, delete this exception statement from your version.
-// If you delete this exception statement from all source files in the
-// program, then also delete it here.
-//
-// Contact:  Jari Sundell <sundell.software@gmail.com>
-
-
 #ifndef RTORRENT_SIGNAL_HANDLER_H
 #define RTORRENT_SIGNAL_HANDLER_H
 
@@ -56,6 +22,11 @@ public:
   static void         set_ignore(unsigned int signum);
   static void         set_handler(unsigned int signum, slot_void slot);
 
+  static void         set_block(unsigned int signum);
+  static void         set_unblock(unsigned int signum);
+
+  static void         set_sigchild_ignore();
+
   static void         set_sigaction_handler(unsigned int signum, handler_slot slot);
 
   static const char*  as_string(unsigned int signum);

src/ui/download.cc

@@ -3,8 +3,6 @@
 #include <cassert>
 
 #include <torrent/exceptions.h>
-#include <torrent/chunk_manager.h>
-#include <torrent/connection_manager.h>
 #include <torrent/throttle.h>
 #include <torrent/torrent.h>
 #include <torrent/data/file_list.h>
@@ -32,10 +30,10 @@
 
 namespace ui {
 
-Download::Download(core::Download* d) :
-    m_download(d) {
+Download::Download(core::Download* d)
+  : m_download(d) {
 
-  m_windowDownloadStatus = new WDownloadStatus(d);
+  m_windowDownloadStatus = std::make_unique<WDownloadStatus>(d);
   m_windowDownloadStatus->set_bottom(true);
 
   m_uiArray[DISPLAY_MENU]          = create_menu();
@@ -61,8 +59,6 @@ Download::~Download() {
   assert(!is_active() && "ui::Download::~Download() called on an active object.");
 
   std::for_each(m_uiArray, m_uiArray + DISPLAY_MAX_SIZE, [](ElementBase* eb) { delete eb; });
-
-  delete m_windowDownloadStatus;
 }
 
 inline ElementBase*
@@ -172,7 +168,7 @@ Download::activate(display::Frame* frame, [[maybe_unused]] bool focus) {
   m_frame = frame;
   m_frame->initialize_row(2);
 
-  m_frame->frame(1)->initialize_window(m_windowDownloadStatus);
+  m_frame->frame(1)->initialize_window(m_windowDownloadStatus.get());
   m_windowDownloadStatus->set_active(true);
 
   activate_display_menu(DISPLAY_PEER_LIST);
@@ -250,7 +246,7 @@ Download::activate_display(Display displayType, bool focusDisplay) {
   // Set title.
   switch (displayType) {
   case DISPLAY_MAX_SIZE: break;
-  default: control->ui()->window_title()->set_title(m_download->info()->name()); break;
+  default: control->ui()->window_title()->set_title(m_download->info()->name().str()); break;
   }
 
   control->display()->adjust_layout();

src/ui/download.h

@@ -1,37 +1,3 @@
-// rTorrent - BitTorrent client
-// Copyright (C) 2005-2011, Jari Sundell
-//
-// This program is free software; you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation; either version 2 of the License, or
-// (at your option) any later version.
-// 
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-// 
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-//
-// In addition, as a special exception, the copyright holders give
-// permission to link the code of portions of this program with the
-// OpenSSL library under certain conditions as described in each
-// individual source file, and distribute linked combinations
-// including the two.
-//
-// You must obey the GNU General Public License in all respects for
-// all of the code used other than OpenSSL.  If you modify file(s)
-// with this exception, you may extend this exception to your version
-// of the file(s), but you are not obligated to do so.  If you do not
-// wish to do so, delete this exception statement from your version.
-// If you delete this exception statement from all source files in the
-// program, then also delete it here.
-//
-// Contact:  Jari Sundell <sundell.software@gmail.com>
-
-
 #ifndef RTORRENT_UI_DOWNLOAD_H
 #define RTORRENT_UI_DOWNLOAD_H
 
@@ -113,7 +79,7 @@ private:
 
   bool                m_focusDisplay{};
 
-  WDownloadStatus*    m_windowDownloadStatus;
+  std::unique_ptr<WDownloadStatus> m_windowDownloadStatus;
 };
 
 }

src/ui/element_log_complete.cc

@@ -2,6 +2,7 @@
 
 #include <torrent/exceptions.h>
 #include <torrent/torrent.h>
+#include <torrent/system/callbacks.h>
 #include <torrent/system/thread.h>
 
 #include "display/frame.h"
@@ -17,11 +18,16 @@ namespace ui {
 ElementLogComplete::ElementLogComplete(torrent::log_buffer* l) :
     m_log(l) {
 
-  unsigned int signal_index = torrent::main_thread::thread()->signal_bitfield()->add_signal(std::bind(&ElementLogComplete::received_update, this));
+  m_log->lock_and_set_update_slot([this]() {
+      if (m_log_updating.exchange(true) == true)
+        return;
 
-  m_log->lock_and_set_update_slot([signal_index]() {
-    torrent::main_thread::thread()->send_event_signal(signal_index, false);
-  });
+      torrent::main_thread::callback([this]() { received_update(); });
+    });
+}
+
+ElementLogComplete::~ElementLogComplete() {
+  m_log->lock_and_set_update_slot(nullptr);
 }
 
 void
@@ -59,6 +65,8 @@ ElementLogComplete::window() {
 
 void
 ElementLogComplete::received_update() {
+  m_log_updating = false;
+
   if (m_window != NULL)
     m_window->mark_dirty();
 }

src/ui/element_log_complete.h

@@ -15,12 +15,13 @@ namespace ui {
 
 class ElementLogComplete : public ElementBase {
 public:
-  typedef display::WindowLogComplete    WLogComplete;
+  using WLogComplete = display::WindowLogComplete;
 
   ElementLogComplete(torrent::log_buffer* l);
+  ~ElementLogComplete() override;
 
-  void                activate(display::Frame* frame, bool focus = true);
-  void                disable();
+  void                activate(display::Frame* frame, bool focus = true) override;
+  void                disable() override;
 
   display::Window*    window();
 
@@ -30,6 +31,10 @@ private:
   WLogComplete*       m_window{};
 
   torrent::log_buffer* m_log;
+
+  align_cacheline
+
+  std::atomic<bool>   m_log_updating{};
 };
 
 }

src/utils/base64.cc

@@ -70,4 +70,5 @@ decode_base64(const std::string& input) {
   }
   return decodedBytes;
 }
+
 } // namespace utils

src/utils/base64.h

@@ -1,12 +1,14 @@
 #ifndef RTORRENT_UTILS_BASE64_H
 #define RTORRENT_UTILS_BASE64_H
 
+#include <optional>
 #include <string>
-
+#include <vector>
 #include <torrent/exceptions.h>
 
 namespace utils {
 
+// TODO: Deprecate.
 std::string remove_newlines(const std::string& str);
 std::string decode_base64(const std::string& input);
 

src/utils/file_status_cache.cc

@@ -21,13 +21,16 @@ FileStatusCache::insert(const std::string& path) {
 
   std::pair<iterator, bool> result = base_type::insert(value_type(path, file_status()));
 
-  // Return false if the file hasn't been modified since last time. We
-  // use 'equal to' instead of 'greater than' since the file might
-  // have been replaced by another file, and thus should be re-tried.
-  if (!result.second && result.first->second.m_mtime == (uint32_t)fs.modified_time())
+  // Return false if the file hasn't changed since last time. We use
+  // 'equal to' instead of 'greater than' since the file might have
+  // been replaced by another file, and thus should be re-tried.
+  if (!result.second &&
+      result.first->second.m_mtime == (uint32_t)fs.modified_time() &&
+      result.first->second.m_size == (int64_t)fs.size())
     return false;
 
   result.first->second.m_flags = 0;
+  result.first->second.m_size  = (int64_t)fs.size();
   result.first->second.m_mtime = fs.modified_time();
 
   return true;
@@ -41,7 +44,9 @@ FileStatusCache::prune() {
     torrent::utils::FileStat fs;
     iterator tmp = itr++;
 
-    if (!fs.update(expand_path(tmp->first)) || tmp->second.m_mtime != (uint32_t)fs.modified_time())
+    if (!fs.update(expand_path(tmp->first)) ||
+        tmp->second.m_mtime != (uint32_t)fs.modified_time() ||
+        tmp->second.m_size != (int64_t)fs.size())
       base_type::erase(tmp);
   }
 }

src/utils/file_status_cache.h

@@ -9,6 +9,7 @@ namespace utils {
 
 struct file_status {
   int      m_flags;
+  int64_t  m_size;
   uint32_t m_mtime;
 };
 
@@ -32,14 +33,14 @@ public:
 
   using base_type::erase;
 
-  // Insert and return true if the entry does not exist or the new
-  // file's mtime is more recent.
+  // Insert and return true if the entry does not exist or the file's
+  // status has changed.
   bool                insert(const std::string& path);
 
   // Add a function for pruning a sorted list of paths.
 
   // Function for pruning entries that no longer points to a file, or
-  // has a different mtime.
+  // has different status.
   void                prune();
 };
 

src/utils/waitpid_queue.cc

@@ -0,0 +1,107 @@
+#include "config.h"
+
+#include "utils/waitpid_queue.h"
+
+#include <sys/wait.h>
+#include <torrent/exceptions.h>
+
+namespace utils {
+
+WaitpidQueue::WaitpidQueue() {
+  m_worker = std::async(std::launch::async, [this]() {
+      auto wait_time  = 50ms;
+
+      while (true) {
+        if (!m_queue.empty()) {
+          auto start_time = std::chrono::steady_clock::now();
+
+          while (std::chrono::steady_clock::now() - start_time < wait_time) {
+            if (m_should_shutdown.load(std::memory_order_acquire))
+              return;
+
+            std::this_thread::sleep_for(50ms);
+
+            if (m_wakeup_worker.load(std::memory_order_acquire))
+              break;
+          }
+
+        } else {
+          m_wakeup_worker.wait(false, std::memory_order_acquire);
+        }
+
+        // Adds a small delay to allow new processes to finish if they're quickly spawned and
+        // terminated.
+        std::this_thread::sleep_for(50ms);
+
+        std::set<pid_t> queue;
+
+        {
+          std::lock_guard<std::mutex> guard(m_mutex);
+
+          if (m_should_shutdown)
+            return;
+
+          if (m_queue.empty())
+            throw torrent::internal_error("WaitpidQueue worker thread woke up but queue is empty.");
+
+          queue = m_queue;
+
+          m_wakeup_worker.store(false, std::memory_order_release);
+        }
+
+        wait_time = std::min(10 * 1000ms, wait_time * 2);
+
+        for (auto pid : queue) {
+          if (::waitpid(pid, nullptr, WNOHANG) == 0)
+            continue;
+
+          {
+            std::lock_guard<std::mutex> guard(m_mutex);
+
+            if (m_queue.erase(pid) != 1)
+              throw torrent::internal_error("WaitpidQueue worker thread could not find pid in queue.");
+          }
+
+          wait_time = std::max(50ms, wait_time / 2);
+
+          m_remaining.fetch_sub(1, std::memory_order_release);
+          m_remaining.notify_all();
+        }
+      }
+    });
+}
+
+// We don't wait for the worker thread to finish as waitpid isn't needed to be called on shutdown.
+WaitpidQueue::~WaitpidQueue() {
+  {
+    std::lock_guard<std::mutex> guard(m_mutex);
+    m_should_shutdown = true;
+  }
+
+  m_wakeup_worker.store(true, std::memory_order_release);
+  m_wakeup_worker.notify_all();
+}
+
+void
+WaitpidQueue::close_pid(pid_t pid) {
+  if (pid < 0)
+    throw torrent::internal_error("WaitpidQueue::close_pid() called with invalid pid.");
+
+  m_remaining.fetch_add(1, std::memory_order_acquire);
+
+  {
+    std::lock_guard<std::mutex> guard(m_mutex);
+    m_queue.insert(pid);
+  }
+
+  m_wakeup_worker.store(true, std::memory_order_release);
+  m_wakeup_worker.notify_all();
+}
+
+void
+WaitpidQueue::wait_for(uint32_t max_remaining) {
+  while (m_remaining.load(std::memory_order_acquire) > max_remaining)
+    m_remaining.wait(max_remaining, std::memory_order_acquire);
+}
+
+} // namespace torrent::utils

src/utils/waitpid_queue.h

@@ -0,0 +1,44 @@
+#ifndef RTORRENT_UTILS_WAITPID_QUEUE_H
+#define RTORRENT_UTILS_WAITPID_QUEUE_H
+
+#include <future>
+#include <set>
+#include <torrent/system/common.h>
+
+namespace utils {
+
+class WaitpidQueue {
+public:
+  WaitpidQueue();
+  ~WaitpidQueue();
+
+  uint32_t            size() const;
+
+  void                close_pid(int pid);
+
+  void                wait_for(uint32_t max_remaining);
+
+private:
+  WaitpidQueue(const WaitpidQueue&) = delete;
+  WaitpidQueue& operator=(const WaitpidQueue&) = delete;
+
+  std::future<void>   m_worker;
+
+  align_cacheline
+
+  std::mutex          m_mutex;
+  std::set<pid_t>     m_queue;
+
+  align_cacheline
+
+  std::atomic<bool>     m_wakeup_worker{};
+  std::atomic<bool>     m_should_shutdown{};
+
+  std::atomic<uint32_t> m_remaining{};
+};
+
+inline uint32_t WaitpidQueue::size() const { return m_remaining.load(std::memory_order_acquire); }
+
+} // namespace utils
+
+#endif

src/utils/watch_ready_queue.cc

@@ -0,0 +1,158 @@
+#include "config.h"
+
+#include "utils/watch_ready_queue.h"
+
+#include <algorithm>
+#include <torrent/utils/file_stat.h>
+#include <torrent/utils/log.h>
+
+#include "globals.h"
+#include "rpc/rpc_manager.h"
+
+namespace utils {
+
+namespace {
+
+auto compare_next_time = [](const auto* lhs, const auto* rhs) {
+  return lhs->next_time > rhs->next_time;
+};
+
+}
+
+WatchReadyQueue::WatchReadyQueue() {
+  m_task_process.slot() = [this]() { process(); };
+}
+
+WatchReadyQueue::~WatchReadyQueue() {
+  torrent::this_thread::scheduler()->erase(&m_task_process);
+}
+
+void
+WatchReadyQueue::push(const std::string& command, const std::string& path) {
+  if (!m_active)
+    return;
+
+  auto result = m_entries.emplace(path, Entry());
+  auto& entry = result.first->second;
+
+  if (result.second) {
+    entry.path = path;
+    entry.first_seen = torrent::this_thread::cached_time();
+  }
+
+  entry.command = command;
+  entry.last_changed = torrent::this_thread::cached_time();
+  update_status(&entry);
+
+  if (result.second) {
+    update_next_time(&entry);
+    push_entry(&entry);
+  } else {
+    update_entry(&entry);
+  }
+
+  schedule();
+}
+
+void
+WatchReadyQueue::shutdown() {
+  m_active = false;
+  m_entries.clear();
+  m_entry_queue.clear();
+  torrent::this_thread::scheduler()->erase(&m_task_process);
+}
+
+void
+WatchReadyQueue::push_entry(Entry* entry) {
+  m_entry_queue.push_back(entry);
+  std::push_heap(m_entry_queue.begin(), m_entry_queue.end(), compare_next_time);
+}
+
+void
+WatchReadyQueue::update_entry(Entry* entry) {
+  update_next_time(entry);
+  std::make_heap(m_entry_queue.begin(), m_entry_queue.end(), compare_next_time);
+}
+
+void
+WatchReadyQueue::update_next_time(Entry* entry) {
+  if (entry->regular && entry->size > 0) {
+    entry->next_time = entry->last_changed + quiet_time;
+    return;
+  }
+
+  entry->next_time = std::min(torrent::this_thread::cached_time() + retry_time,
+                              entry->first_seen + stale_time);
+}
+
+void
+WatchReadyQueue::update_status(Entry* entry) {
+  torrent::utils::FileStat fs;
+  bool regular = false;
+  int64_t size = -1;
+  time_t mtime = 0;
+
+  if (fs.update(expand_path(entry->path))) {
+    regular = fs.is_regular();
+    size = fs.size();
+    mtime = fs.modified_time();
+  }
+
+  if (entry->regular != regular || entry->size != size || entry->mtime != mtime) {
+    entry->regular = regular;
+    entry->size = size;
+    entry->mtime = mtime;
+    entry->last_changed = torrent::this_thread::cached_time();
+  }
+}
+
+void
+WatchReadyQueue::process() {
+  ready_list ready;
+
+  while (!m_entry_queue.empty() && m_entry_queue.front()->next_time <= torrent::this_thread::cached_time()) {
+    std::pop_heap(m_entry_queue.begin(), m_entry_queue.end(), compare_next_time);
+    Entry* entry = m_entry_queue.back();
+    m_entry_queue.pop_back();
+
+    update_status(entry);
+
+    bool unchanged_entry = torrent::this_thread::cached_time() - entry->last_changed >= quiet_time;
+    bool stale_entry = torrent::this_thread::cached_time() - entry->first_seen >= stale_time;
+    bool nonempty_regular = entry->regular && entry->size > 0;
+
+    if (nonempty_regular && unchanged_entry) {
+      ready.emplace_back(entry->command, entry->path);
+      std::string path = entry->path;
+      m_entries.erase(path);
+      continue;
+    }
+
+    if (!nonempty_regular && stale_entry) {
+      std::string path = entry->path;
+      lt_log_print(torrent::LOG_SYSTEM, "system: Dropped unready watch file after timeout: \"%s\"", path.c_str());
+      m_entries.erase(path);
+      continue;
+    }
+
+    update_next_time(entry);
+    push_entry(entry);
+  }
+
+  schedule();
+
+  for (const auto& item : ready)
+    rpc::commands.call_catch(item.first.c_str(), rpc::make_target(), item.second);
+}
+
+void
+WatchReadyQueue::schedule() {
+  if (m_entry_queue.empty()) {
+    torrent::this_thread::scheduler()->erase(&m_task_process);
+    return;
+  }
+
+  torrent::this_thread::scheduler()->update_wait_until(&m_task_process, m_entry_queue.front()->next_time);
+}
+
+}

src/utils/watch_ready_queue.h

@@ -0,0 +1,62 @@
+#ifndef RTORRENT_UTILS_WATCH_READY_QUEUE_H
+#define RTORRENT_UTILS_WATCH_READY_QUEUE_H
+
+#include <chrono>
+#include <cstdint>
+#include <ctime>
+#include <map>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include <torrent/system/scheduler.h>
+
+namespace utils {
+
+class WatchReadyQueue {
+public:
+  WatchReadyQueue();
+  ~WatchReadyQueue();
+
+  void                push(const std::string& command, const std::string& path);
+  void                shutdown();
+  bool                empty() const { return m_entries.empty(); }
+
+private:
+  using time_type = std::chrono::microseconds;
+
+  static constexpr auto quiet_time = std::chrono::milliseconds(500);
+  static constexpr auto retry_time = std::chrono::milliseconds(250);
+  static constexpr auto stale_time = std::chrono::seconds(10);
+
+  using ready_list = std::vector<std::pair<std::string, std::string>>;
+
+  struct Entry {
+    std::string command;
+    std::string path;
+    bool        regular{};
+    int64_t     size{-1};
+    time_t      mtime{};
+    time_type   first_seen{};
+    time_type   last_changed{};
+    time_type   next_time{};
+  };
+
+  void               process();
+  void               push_entry(Entry* entry);
+  void               update_entry(Entry* entry);
+  void               update_next_time(Entry* entry);
+  void               update_status(Entry* entry);
+  void               schedule();
+
+  std::map<std::string, Entry> m_entries;
+  std::vector<Entry*>          m_entry_queue;
+
+  bool                         m_active{true};
+
+  torrent::system::SchedulerEntry m_task_process;
+};
+
+}
+
+#endif

test/Makefile.am

@@ -48,7 +48,11 @@ rtorrent_Test_Rpc_SOURCES = $(rtorrent_Test_Common) \
 
 rtorrent_Test_Src_SOURCES = $(rtorrent_Test_Common) \
 	src/test_command_dynamic.cc \
-	src/test_command_dynamic.h
+	src/test_command_dynamic.h \
+	src/test_command_local.cc \
+	src/test_command_local.h \
+	src/test_watch_ready_queue.cc \
+	src/test_watch_ready_queue.h
 
 rtorrent_Test_Rpc_CXXFLAGS = $(CPPUNIT_CFLAGS)
 rtorrent_Test_Rpc_LDFLAGS = $(CPPUNIT_LIBS) -ldl

test/helpers/mock_compare.h

@@ -2,9 +2,10 @@
 #define LIBTORRENT_HELPERS_MOCK_COMPARE_H
 
 #include <algorithm>
+#include <map>
 #include <type_traits>
-#include <torrent/event.h>
 #include <torrent/net/socket_address.h>
+#include <torrent/system/event.h>
 
 // Compare arguments to mock functions with what is expected. The lhs
 // are the expected arguments, rhs are the ones called with.
@@ -13,13 +14,13 @@ template <typename Arg>
 inline bool mock_compare_arg(Arg lhs, Arg rhs) { return lhs == rhs; }
 
 template <int I, typename A, typename... Args>
-typename std::enable_if<I == 1, int>::type
+std::enable_if_t<I == 1, int>
 mock_compare_tuple(const std::tuple<A, Args...>& lhs, const std::tuple<Args...>& rhs) {
   return mock_compare_arg(std::get<I>(lhs), std::get<I - 1>(rhs)) ? 0 : 1;
 }
 
 template <int I, typename A, typename... Args>
-typename std::enable_if<1 < I, int>::type
+std::enable_if_t<1 < I, int>
 mock_compare_tuple(const std::tuple<A, Args...>& lhs, const std::tuple<Args...>& rhs) {
   auto res = mock_compare_tuple<I - 1>(lhs, rhs);
 
@@ -70,24 +71,37 @@ void mock_compare_add(T* v) {
 // Specialize:
 //
 
+constexpr int mock_compare_gt_two_int = -0xFD30;
+
+template <>
+inline bool mock_compare_arg<int>(int lhs, int rhs) {
+  if (lhs == mock_compare_gt_two_int)
+    return rhs > 2;
+  if (rhs == mock_compare_gt_two_int)
+    return lhs > 2;
+
+  return lhs == rhs;
+}
+
 template <>
 inline bool mock_compare_arg<sockaddr*>(sockaddr* lhs, sockaddr* rhs) {
   return lhs != nullptr && rhs != nullptr && torrent::sa_equal(lhs, rhs);
 }
+
 template <>
 inline bool mock_compare_arg<const sockaddr*>(const sockaddr* lhs, const sockaddr* rhs) {
   return lhs != nullptr && rhs != nullptr && torrent::sa_equal(lhs, rhs);
 }
 
 template <>
-inline bool mock_compare_arg<torrent::Event*>(torrent::Event* lhs, torrent::Event* rhs) {
-  if (mock_compare_map<torrent::Event>::is_key(lhs)) {
-    if (!mock_compare_map<torrent::Event>::has_value(rhs)) {
-      mock_compare_map<torrent::Event>::values[lhs] = rhs;
+inline bool mock_compare_arg<torrent::system::Event*>(torrent::system::Event* lhs, torrent::system::Event* rhs) {
+  if (mock_compare_map<torrent::system::Event>::is_key(lhs)) {
+    if (!mock_compare_map<torrent::system::Event>::has_value(rhs)) {
+      mock_compare_map<torrent::system::Event>::values[lhs] = rhs;
       return true;
     }
 
-    return mock_compare_map<torrent::Event>::has_key(lhs) && mock_compare_map<torrent::Event>::get(lhs) == rhs;
+    return mock_compare_map<torrent::system::Event>::has_key(lhs) && mock_compare_map<torrent::system::Event>::get(lhs) == rhs;
   }
 
   return lhs == rhs;

test/helpers/mock_function.cc

@@ -6,9 +6,9 @@
 #include <iostream>
 #include <unistd.h>
 
-#include "torrent/event.h"
 #include "torrent/net/socket_address.h"
 #include "torrent/net/fd.h"
+#include "torrent/system/event.h"
 #include "torrent/utils/log.h"
 #include "torrent/utils/random.h"
 
@@ -32,7 +32,7 @@ mock_clear(bool ignore_assert) {
   MOCK_CLEANUP_MAP(torrent::random_uniform_uint16);
   MOCK_CLEANUP_MAP(torrent::random_uniform_uint32);
 
-  mock_compare_map<torrent::Event>::values.clear();
+  mock_compare_map<torrent::system::Event>::values.clear();
 }
 } // namespace
 
@@ -55,7 +55,9 @@ mock_redirect_defaults([[maybe_unused]] mock_redirect_flags flags) {
 
   mock_redirect(torrent::fd__close, std::function<int(int fildes)>([](int fildes) { return ::close(fildes); }));
   mock_redirect(torrent::fd__fcntl_int, std::function<int(int fildes, int cmd, int arg)>([](int fildes, int cmd, int arg) { return ::fcntl(fildes, cmd, arg); }));
-  mock_redirect(torrent::fd__setsockopt_int, std::function<int(int socket, int level, int option_name, int option_value)>([](int socket, int level, int option_name, int option_value) { return ::setsockopt(socket, level, option_name, &option_value, sizeof(int)); }));
+  mock_redirect(torrent::fd__setsockopt_int, std::function<int(int socket, int level, int option_name, int option_value)>([](int socket, int level, int option_name, int option_value) {
+      return ::setsockopt(socket, level, option_name, &option_value, sizeof(int));
+    }));
   mock_redirect(torrent::fd__socket, std::function<int(int domain, int type, int protocol)>([](int domain, int type, int protocol) { return ::socket(domain, type, protocol); }));
 }
 
@@ -112,69 +114,6 @@ int fd__socket(int domain, int type, int protocol) {
   return mock_call<int>(__func__, &torrent::fd__socket, domain, type, protocol);
 }
 
-//
-// Mock functions for 'torrent/common.h':
-//
-
-namespace this_thread {
-
-void event_open(Event* event) {
-  MOCK_LOG("fd:%i type_name:%s", event->file_descriptor(), event->type_name());
-  return mock_call<void>(__func__, &torrent::this_thread::event_open, event);
-}
-
-void event_open_and_count(Event* event) {
-  MOCK_LOG("fd:%i type_name:%s", event->file_descriptor(), event->type_name());
-  return mock_call<void>(__func__, &torrent::this_thread::event_open_and_count, event);
-}
-
-void event_close_and_count(Event* event) {
-  MOCK_LOG("fd:%i type_name:%s", event->file_descriptor(), event->type_name());
-  return mock_call<void>(__func__, &torrent::this_thread::event_close_and_count, event);
-}
-
-void event_closed_and_count(Event* event) {
-  MOCK_LOG("fd:%i type_name:%s", event->file_descriptor(), event->type_name());
-  return mock_call<void>(__func__, &torrent::this_thread::event_closed_and_count, event);
-}
-
-void event_insert_read(Event* event) {
-  MOCK_LOG("fd:%i type_name:%s", event->file_descriptor(), event->type_name());
-  return mock_call<void>(__func__, &torrent::this_thread::event_insert_read, event);
-}
-
-void event_insert_write(Event* event) {
-  MOCK_LOG("fd:%i type_name:%s", event->file_descriptor(), event->type_name());
-  return mock_call<void>(__func__, &torrent::this_thread::event_insert_write, event);
-}
-
-void event_insert_error(Event* event) {
-  MOCK_LOG("fd:%i type_name:%s", event->file_descriptor(), event->type_name());
-  return mock_call<void>(__func__, &torrent::this_thread::event_insert_error, event);
-}
-
-void event_remove_read(Event* event) {
-  MOCK_LOG("fd:%i type_name:%s", event->file_descriptor(), event->type_name());
-  return mock_call<void>(__func__, &torrent::this_thread::event_remove_read, event);
-}
-
-void event_remove_write(Event* event) {
-  MOCK_LOG("fd:%i type_name:%s", event->file_descriptor(), event->type_name());
-  return mock_call<void>(__func__, &torrent::this_thread::event_remove_write, event);
-}
-
-void event_remove_error(Event* event) {
-  MOCK_LOG("fd:%i type_name:%s", event->file_descriptor(), event->type_name());
-  return mock_call<void>(__func__, &torrent::this_thread::event_remove_error, event);
-}
-
-void event_remove_and_close(Event* event) {
-  MOCK_LOG("fd:%i type_name:%s", event->file_descriptor(), event->type_name());
-  return mock_call<void>(__func__, &torrent::this_thread::event_remove_and_close, event);
-}
-
-}
-
 //
 // Mock functions for 'torrent/utils/random.h':
 //

test/helpers/test_main_thread.cc

@@ -8,7 +8,6 @@
 #include "torrent/exceptions.h"
 #include "torrent/net/resolver.h"
 #include "torrent/utils/log.h"
-#include "torrent/utils/scheduler.h"
 
 std::unique_ptr<TestMainThread>
 TestMainThread::create() {